diff --git a/crates/caldav/src/calendar/methods/mkcalendar.rs b/crates/caldav/src/calendar/methods/mkcalendar.rs
index 95ff9d6..c1964bc 100644
--- a/crates/caldav/src/calendar/methods/mkcalendar.rs
+++ b/crates/caldav/src/calendar/methods/mkcalendar.rs
@@ -46,7 +46,7 @@ pub struct PropElement {
 }
 
 #[derive(XmlDeserialize, XmlRootTag, Clone, Debug)]
-#[xml(root = b"mkcalendar")]
+#[xml(root = "mkcalendar")]
 #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
 struct MkcalendarRequest {
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
@@ -54,7 +54,7 @@ struct MkcalendarRequest {
 }
 
 #[derive(XmlDeserialize, XmlRootTag, Clone, Debug)]
-#[xml(root = b"mkcol")]
+#[xml(root = "mkcol")]
 #[xml(ns = "rustical_dav::namespace::NS_DAV")]
 struct MkcolRequest {
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
diff --git a/crates/caldav/src/calendar/resource.rs b/crates/caldav/src/calendar/resource.rs
index 9afdbe0..c3a2f1c 100644
--- a/crates/caldav/src/calendar/resource.rs
+++ b/crates/caldav/src/calendar/resource.rs
@@ -225,12 +225,12 @@ impl Resource for CalendarResource {
                 }
                 CalendarProp::TimezoneServiceSet(_) => Err(rustical_dav::Error::PropReadOnly),
                 CalendarProp::CalendarTimezoneId(timezone_id) => {
-                    if let Some(tzid) = &timezone_id {
-                        if !vtimezones_rs::VTIMEZONES.contains_key(tzid) {
-                            return Err(rustical_dav::Error::BadRequest(format!(
-                                "Invalid timezone-id: {tzid}"
-                            )));
-                        }
+                    if let Some(tzid) = &timezone_id
+                        && !vtimezones_rs::VTIMEZONES.contains_key(tzid)
+                    {
+                        return Err(rustical_dav::Error::BadRequest(format!(
+                            "Invalid timezone-id: {tzid}"
+                        )));
                     }
                     self.cal.timezone_id = timezone_id;
                     Ok(())
diff --git a/crates/caldav/src/principal/prop.rs b/crates/caldav/src/principal/prop.rs
index 2073cff..6777dfb 100644
--- a/crates/caldav/src/principal/prop.rs
+++ b/crates/caldav/src/principal/prop.rs
@@ -16,13 +16,13 @@ pub enum PrincipalProp {
     CalendarUserAddressSet(HrefElement),
 
     // WebDAV Access Control (RFC 3744)
-    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = b"principal-URL")]
+    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = "principal-URL")]
     PrincipalUrl(HrefElement),
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     GroupMembership(GroupMembership),
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     GroupMemberSet(GroupMemberSet),
-    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = b"alternate-URI-set")]
+    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = "alternate-URI-set")]
     AlternateUriSet,
     // #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     // PrincipalCollectionSet(HrefElement),
diff --git a/crates/carddav/src/addressbook/methods/mkcol.rs b/crates/carddav/src/addressbook/methods/mkcol.rs
index 225ce0f..aa4720e 100644
--- a/crates/carddav/src/addressbook/methods/mkcol.rs
+++ b/crates/carddav/src/addressbook/methods/mkcol.rs
@@ -22,7 +22,7 @@ pub struct MkcolAddressbookProp {
     resourcetype: Option<Resourcetype>,
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     displayname: Option<String>,
-    #[xml(rename = b"addressbook-description")]
+    #[xml(rename = "addressbook-description")]
     #[xml(ns = "rustical_dav::namespace::NS_CARDDAV")]
     description: Option<String>,
 }
@@ -34,7 +34,7 @@ pub struct PropElement<T: XmlDeserialize> {
 }
 
 #[derive(XmlDeserialize, XmlRootTag, Clone, Debug, PartialEq)]
-#[xml(root = b"mkcol")]
+#[xml(root = "mkcol")]
 #[xml(ns = "rustical_dav::namespace::NS_DAV")]
 struct MkcolRequest {
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
diff --git a/crates/carddav/src/principal/prop.rs b/crates/carddav/src/principal/prop.rs
index ebe68e8..8bf79a4 100644
--- a/crates/carddav/src/principal/prop.rs
+++ b/crates/carddav/src/principal/prop.rs
@@ -8,14 +8,14 @@ use rustical_xml::{EnumVariants, PropName, XmlDeserialize, XmlSerialize};
 #[xml(unit_variants_ident = "PrincipalPropName")]
 pub enum PrincipalProp {
     // WebDAV Access Control (RFC 3744)
-    #[xml(rename = b"principal-URL")]
+    #[xml(rename = "principal-URL")]
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     PrincipalUrl(HrefElement),
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     GroupMembership(GroupMembership),
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     GroupMemberSet(GroupMemberSet),
-    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = b"alternate-URI-set")]
+    #[xml(ns = "rustical_dav::namespace::NS_DAV", rename = "alternate-URI-set")]
     AlternateUriSet,
     #[xml(ns = "rustical_dav::namespace::NS_DAV")]
     PrincipalCollectionSet(HrefElement),
diff --git a/crates/dav/src/privileges.rs b/crates/dav/src/privileges.rs
index b401110..beb3347 100644
--- a/crates/dav/src/privileges.rs
+++ b/crates/dav/src/privileges.rs
@@ -20,13 +20,13 @@ impl XmlSerialize for UserPrivilegeSet {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         #[derive(XmlSerialize)]
         pub struct FakeUserPrivilegeSet {
-            #[xml(rename = b"privilege", flatten)]
+            #[xml(rename = "privilege", flatten)]
             privileges: Vec<UserPrivilege>,
         }
 
diff --git a/crates/dav/src/resource/methods/delete.rs b/crates/dav/src/resource/methods/delete.rs
index 8279ab4..d7b5c47 100644
--- a/crates/dav/src/resource/methods/delete.rs
+++ b/crates/dav/src/resource/methods/delete.rs
@@ -60,11 +60,11 @@ pub async fn route_delete<R: ResourceService>(
             return Err(crate::Error::PreconditionFailed.into());
         }
     }
-    if let Some(if_none_match) = if_none_match {
-        if resource.satisfies_if_none_match(&if_none_match) {
-            // Precondition failed
-            return Err(crate::Error::PreconditionFailed.into());
-        }
+    if let Some(if_none_match) = if_none_match
+        && resource.satisfies_if_none_match(&if_none_match)
+    {
+        // Precondition failed
+        return Err(crate::Error::PreconditionFailed.into());
     }
     resource_service
         .delete_resource(path_components, !no_trash)
diff --git a/crates/dav/src/resource/methods/proppatch.rs b/crates/dav/src/resource/methods/proppatch.rs
index 0147e1e..4ba6adf 100644
--- a/crates/dav/src/resource/methods/proppatch.rs
+++ b/crates/dav/src/resource/methods/proppatch.rs
@@ -57,7 +57,7 @@ enum Operation<T: XmlDeserialize> {
 }
 
 #[derive(XmlDeserialize, XmlRootTag, Clone, Debug)]
-#[xml(root = b"propertyupdate")]
+#[xml(root = "propertyupdate")]
 #[xml(ns = "crate::namespace::NS_DAV")]
 struct PropertyupdateElement<T: XmlDeserialize>(#[xml(ty = "untagged", flatten)] Vec<Operation<T>>);
 
diff --git a/crates/dav/src/xml/error.rs b/crates/dav/src/xml/error.rs
index 8dc5afc..32d95fd 100644
--- a/crates/dav/src/xml/error.rs
+++ b/crates/dav/src/xml/error.rs
@@ -1,7 +1,7 @@
 use rustical_xml::{XmlRootTag, XmlSerialize};
 
 #[derive(XmlSerialize, XmlRootTag)]
-#[xml(ns = "crate::namespace::NS_DAV", root = b"error")]
+#[xml(ns = "crate::namespace::NS_DAV", root = "error")]
 #[xml(ns_prefix(
     crate::namespace::NS_DAV = "",
     crate::namespace::NS_CARDDAV = "CARD",
diff --git a/crates/dav/src/xml/multistatus.rs b/crates/dav/src/xml/multistatus.rs
index 19c9f73..0e2cc0b 100644
--- a/crates/dav/src/xml/multistatus.rs
+++ b/crates/dav/src/xml/multistatus.rs
@@ -22,8 +22,8 @@ pub struct PropstatElement<PropType: XmlSerialize> {
 fn xml_serialize_status(
     status: &StatusCode,
     ns: Option<Namespace>,
-    tag: Option<&[u8]>,
-    namespaces: &HashMap<Namespace, &[u8]>,
+    tag: Option<&str>,
+    namespaces: &HashMap<Namespace, &str>,
     writer: &mut quick_xml::Writer<&mut Vec<u8>>,
 ) -> std::io::Result<()> {
     XmlSerialize::serialize(&format!("HTTP/1.1 {}", status), ns, tag, namespaces, writer)
@@ -40,7 +40,7 @@ pub enum PropstatWrapper<T: XmlSerialize> {
 // <!ELEMENT response (href, ((href*, status)|(propstat+)),
 // responsedescription?) >
 #[derive(XmlSerialize, XmlRootTag)]
-#[xml(ns = "crate::namespace::NS_DAV", root = b"response")]
+#[xml(ns = "crate::namespace::NS_DAV", root = "response")]
 #[xml(ns_prefix(
     crate::namespace::NS_DAV = "",
     crate::namespace::NS_CARDDAV = "CARD",
@@ -59,8 +59,8 @@ pub struct ResponseElement<PropstatType: XmlSerialize> {
 fn xml_serialize_optional_status(
     val: &Option<StatusCode>,
     ns: Option<Namespace>,
-    tag: Option<&[u8]>,
-    namespaces: &HashMap<Namespace, &[u8]>,
+    tag: Option<&str>,
+    namespaces: &HashMap<Namespace, &str>,
     writer: &mut quick_xml::Writer<&mut Vec<u8>>,
 ) -> std::io::Result<()> {
     XmlSerialize::serialize(
@@ -86,7 +86,7 @@ impl<PT: XmlSerialize> Default for ResponseElement<PT> {
 // <!ELEMENT multistatus (response+, responsedescription?) >
 // Extended by sync-token as specified in RFC 6578
 #[derive(XmlSerialize, XmlRootTag)]
-#[xml(root = b"multistatus", ns = "crate::namespace::NS_DAV")]
+#[xml(root = "multistatus", ns = "crate::namespace::NS_DAV")]
 #[xml(ns_prefix(
     crate::namespace::NS_DAV = "",
     crate::namespace::NS_CARDDAV = "CARD",
@@ -95,9 +95,9 @@ impl<PT: XmlSerialize> Default for ResponseElement<PT> {
     crate::namespace::NS_DAVPUSH = "PUSH"
 ))]
 pub struct MultistatusElement<PropType: XmlSerialize, MemberPropType: XmlSerialize> {
-    #[xml(rename = b"response", flatten)]
+    #[xml(rename = "response", flatten)]
     pub responses: Vec<ResponseElement<PropType>>,
-    #[xml(rename = b"response", flatten)]
+    #[xml(rename = "response", flatten)]
     pub member_responses: Vec<ResponseElement<MemberPropType>>,
     pub sync_token: Option<String>,
 }
diff --git a/crates/dav/src/xml/propfind.rs b/crates/dav/src/xml/propfind.rs
index 587bbc3..dbee279 100644
--- a/crates/dav/src/xml/propfind.rs
+++ b/crates/dav/src/xml/propfind.rs
@@ -7,7 +7,7 @@ use rustical_xml::XmlError;
 use rustical_xml::XmlRootTag;
 
 #[derive(Debug, Clone, XmlDeserialize, XmlRootTag, PartialEq)]
-#[xml(root = b"propfind", ns = "crate::namespace::NS_DAV")]
+#[xml(root = "propfind", ns = "crate::namespace::NS_DAV")]
 pub struct PropfindElement<PN: XmlDeserialize> {
     #[xml(ty = "untagged")]
     pub prop: PropfindType<PN>,
diff --git a/crates/dav/src/xml/resourcetype.rs b/crates/dav/src/xml/resourcetype.rs
index e5bde00..8b9dcb5 100644
--- a/crates/dav/src/xml/resourcetype.rs
+++ b/crates/dav/src/xml/resourcetype.rs
@@ -16,7 +16,7 @@ mod tests {
     use super::{Resourcetype, ResourcetypeInner};
 
     #[derive(XmlSerialize, XmlRootTag)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         resourcetype: Resourcetype,
     }
diff --git a/crates/dav/src/xml/sync_collection.rs b/crates/dav/src/xml/sync_collection.rs
index b742d28..50d14a8 100644
--- a/crates/dav/src/xml/sync_collection.rs
+++ b/crates/dav/src/xml/sync_collection.rs
@@ -60,7 +60,7 @@ pub struct NresultsElement(#[xml(ty = "text")] u64);
 // <!ELEMENT sync-collection (sync-token, sync-level, limit?, prop)>
 //    <!-- DAV:limit defined in RFC 5323, Section 5.17 -->
 //    <!-- DAV:prop defined in RFC 4918, Section 14.18 -->
-#[xml(ns = "crate::namespace::NS_DAV", root = b"sync-collection")]
+#[xml(ns = "crate::namespace::NS_DAV", root = "sync-collection")]
 pub struct SyncCollectionRequest<PN: XmlDeserialize> {
     #[xml(ns = "crate::namespace::NS_DAV")]
     pub sync_token: String,
diff --git a/crates/dav/src/xml/tag_list.rs b/crates/dav/src/xml/tag_list.rs
index 0c5ca23..6aa890d 100644
--- a/crates/dav/src/xml/tag_list.rs
+++ b/crates/dav/src/xml/tag_list.rs
@@ -13,8 +13,8 @@ impl XmlSerialize for TagList {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         let prefix = ns
@@ -22,16 +22,16 @@ impl XmlSerialize for TagList {
             .unwrap_or(None)
             .map(|prefix| {
                 if !prefix.is_empty() {
-                    [*prefix, b":"].concat()
+                    format!("{prefix}:")
                 } else {
-                    Vec::new()
+                    String::new()
                 }
             });
         let has_prefix = prefix.is_some();
         let tagname = tag.map(|tag| [&prefix.unwrap_or_default(), tag].concat());
         let qname = tagname
             .as_ref()
-            .map(|tagname| ::quick_xml::name::QName(tagname));
+            .map(|tagname| ::quick_xml::name::QName(tagname.as_bytes()));
 
         if let Some(qname) = &qname {
             let mut bytes_start = BytesStart::from(qname.to_owned());
diff --git a/crates/dav_push/src/lib.rs b/crates/dav_push/src/lib.rs
index a0dd196..e27b394 100644
--- a/crates/dav_push/src/lib.rs
+++ b/crates/dav_push/src/lib.rs
@@ -25,7 +25,7 @@ pub struct ContentUpdate {
 }
 
 #[derive(XmlSerialize, XmlRootTag, Debug)]
-#[xml(root = b"push-message", ns = "rustical_dav::namespace::NS_DAVPUSH")]
+#[xml(root = "push-message", ns = "rustical_dav::namespace::NS_DAVPUSH")]
 #[xml(ns_prefix(
     rustical_dav::namespace::NS_DAVPUSH = "",
     rustical_dav::namespace::NS_DAV = "D",
diff --git a/crates/dav_push/src/prop.rs b/crates/dav_push/src/prop.rs
index 3ffba18..f995967 100644
--- a/crates/dav_push/src/prop.rs
+++ b/crates/dav_push/src/prop.rs
@@ -35,12 +35,12 @@ pub enum Trigger {
 
 #[derive(XmlSerialize, XmlDeserialize, PartialEq, Clone, Debug)]
 pub struct ContentUpdate(
-    #[xml(rename = b"depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
+    #[xml(rename = "depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
 );
 
 #[derive(XmlSerialize, PartialEq, Clone, Debug)]
 pub struct PropertyUpdate(
-    #[xml(rename = b"depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
+    #[xml(rename = "depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
 );
 
 impl XmlDeserialize for PropertyUpdate {
@@ -51,8 +51,8 @@ impl XmlDeserialize for PropertyUpdate {
     ) -> Result<Self, rustical_xml::XmlError> {
         #[derive(XmlDeserialize, PartialEq, Clone, Debug)]
         struct FakePropertyUpdate(
-            #[xml(rename = b"depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
-            #[xml(rename = b"prop", ns = "rustical_dav::namespace::NS_DAV")] pub Unparsed,
+            #[xml(rename = "depth", ns = "rustical_dav::namespace::NS_DAV")] pub Depth,
+            #[xml(rename = "prop", ns = "rustical_dav::namespace::NS_DAV")] pub Unparsed,
         );
         let FakePropertyUpdate(depth, _) = FakePropertyUpdate::deserialize(reader, start, empty)?;
         Ok(Self(depth))
diff --git a/crates/dav_push/src/register.rs b/crates/dav_push/src/register.rs
index 5a3d05b..4a159dc 100644
--- a/crates/dav_push/src/register.rs
+++ b/crates/dav_push/src/register.rs
@@ -17,7 +17,7 @@ pub struct WebPushSubscription {
 
 #[derive(XmlDeserialize, Clone, Debug, PartialEq)]
 pub struct SubscriptionPublicKey {
-    #[xml(ty = "attr", rename = b"type")]
+    #[xml(ty = "attr", rename = "type")]
     pub ty: String,
     #[xml(ty = "text")]
     pub key: String,
@@ -33,7 +33,7 @@ pub struct SubscriptionElement {
 pub struct TriggerElement(#[xml(ty = "untagged", flatten)] Vec<Trigger>);
 
 #[derive(XmlDeserialize, XmlRootTag, Clone, Debug, PartialEq)]
-#[xml(root = b"push-register")]
+#[xml(root = "push-register")]
 #[xml(ns = "rustical_dav::namespace::NS_DAVPUSH")]
 pub struct PushRegister {
     #[xml(ns = "rustical_dav::namespace::NS_DAVPUSH")]
diff --git a/crates/xml/derive/src/attrs.rs b/crates/xml/derive/src/attrs.rs
index 7695173..20ac5c6 100644
--- a/crates/xml/derive/src/attrs.rs
+++ b/crates/xml/derive/src/attrs.rs
@@ -1,11 +1,11 @@
 use std::collections::HashMap;
 
 use darling::{FromDeriveInput, FromField, FromMeta, FromVariant, util::Flag};
-use syn::{Ident, LitByteStr, LitStr};
+use syn::{Ident, LitStr};
 
 #[derive(Debug, Default, FromMeta, Clone)]
 pub struct TagAttrs {
-    pub rename: Option<LitByteStr>,
+    pub rename: Option<LitStr>,
     pub ns: Option<syn::Path>,
 }
 
@@ -30,7 +30,7 @@ pub struct EnumAttrs {
 #[derive(Default, FromDeriveInput, Clone)]
 #[darling(attributes(xml))]
 pub struct StructAttrs {
-    pub root: Option<LitByteStr>,
+    pub root: Option<LitStr>,
     pub ns: Option<syn::Path>,
     #[darling(default)]
     pub ns_prefix: HashMap<syn::Path, LitStr>,
diff --git a/crates/xml/derive/src/field.rs b/crates/xml/derive/src/field.rs
index 39e8aa4..f73e116 100644
--- a/crates/xml/derive/src/field.rs
+++ b/crates/xml/derive/src/field.rs
@@ -35,7 +35,7 @@ impl Field {
     }
 
     /// Field name in XML
-    pub fn xml_name(&self) -> syn::LitByteStr {
+    pub fn xml_name(&self) -> syn::LitStr {
         if let Some(rename) = self.attrs.common.rename.to_owned() {
             rename
         } else {
@@ -43,7 +43,7 @@ impl Field {
                 .field_ident()
                 .as_ref()
                 .expect("unnamed tag fields need a rename attribute");
-            syn::LitByteStr::new(ident.to_string().to_kebab_case().as_bytes(), ident.span())
+            syn::LitStr::new(ident.to_string().to_kebab_case().as_str(), ident.span())
         }
     }
 
@@ -174,6 +174,8 @@ impl Field {
             .map(|ns| quote! { if ns == #ns });
 
         let field_name = self.xml_name();
+        let b_field_name =
+            syn::LitByteStr::new(self.xml_name().value().as_bytes(), field_name.span());
         let builder_field_ident = self.builder_field_ident();
         let deserializer = self.deserializer_type();
         let value = quote! { <#deserializer as rustical_xml::XmlDeserialize>::deserialize(reader, &start, empty)? };
@@ -186,7 +188,7 @@ impl Field {
         };
 
         Some(quote! {
-            (#namespace_match, #field_name) #namespace_condition => { #assignment; }
+            (#namespace_match, #b_field_name) #namespace_condition => { #assignment; }
         })
     }
 
@@ -231,6 +233,8 @@ impl Field {
         }
         let builder_field_ident = self.builder_field_ident();
         let field_name = self.xml_name();
+        let b_field_name =
+            syn::LitByteStr::new(self.xml_name().value().as_bytes(), field_name.span());
 
         let value = wrap_option_if_no_default(
             quote! {
@@ -240,7 +244,7 @@ impl Field {
         );
 
         Some(quote! {
-            #field_name => {
+            #b_field_name => {
                 builder.#builder_field_ident = #value;
             }
         })
@@ -255,7 +259,6 @@ impl Field {
         let value = quote! {
             if let ::quick_xml::name::ResolveResult::Bound(ns) = &ns {
                 Some(ns.into())
-                // Some(rustical_xml::ValueDeserialize::deserialize(&String::from_utf8_lossy(ns.0.as_ref()))?)
             } else {
                 None
             }
diff --git a/crates/xml/derive/src/generic.rs b/crates/xml/derive/src/generic.rs
index 6657a0b..ebcfe38 100644
--- a/crates/xml/derive/src/generic.rs
+++ b/crates/xml/derive/src/generic.rs
@@ -1,16 +1,12 @@
 pub(crate) fn get_generic_type(ty: &syn::Type) -> Option<&syn::Type> {
-    if let syn::Type::Path(syn::TypePath { path, .. }) = ty {
-        if let Some(seg) = path.segments.last() {
-            if let syn::PathArguments::AngleBracketed(syn::AngleBracketedGenericArguments {
-                args,
-                ..
-            }) = &seg.arguments
-            {
-                if let Some(syn::GenericArgument::Type(t)) = &args.first() {
-                    return Some(t);
-                }
-            }
-        }
+    if let syn::Type::Path(syn::TypePath { path, .. }) = ty
+        && let Some(seg) = path.segments.last()
+        && let syn::PathArguments::AngleBracketed(syn::AngleBracketedGenericArguments {
+            args, ..
+        }) = &seg.arguments
+        && let Some(syn::GenericArgument::Type(t)) = &args.first()
+    {
+        return Some(t);
     }
     None
 }
diff --git a/crates/xml/derive/src/variant.rs b/crates/xml/derive/src/variant.rs
index 5d72dc0..e8ad2b3 100644
--- a/crates/xml/derive/src/variant.rs
+++ b/crates/xml/derive/src/variant.rs
@@ -14,13 +14,13 @@ impl Variant {
         &self.variant.ident
     }
 
-    pub fn xml_name(&self) -> syn::LitByteStr {
+    pub fn xml_name(&self) -> syn::LitStr {
         self.attrs
             .common
             .rename
             .to_owned()
-            .unwrap_or(syn::LitByteStr::new(
-                self.ident().to_string().to_kebab_case().as_bytes(),
+            .unwrap_or(syn::LitStr::new(
+                self.ident().to_string().to_kebab_case().as_str(),
                 self.ident().span(),
             ))
     }
@@ -75,6 +75,8 @@ impl Variant {
         }
         let ident = self.ident();
         let variant_name = self.xml_name();
+        let b_variant_name =
+            syn::LitByteStr::new(self.xml_name().value().as_bytes(), variant_name.span());
         let deserializer_type = self.deserializer_type();
 
         Some(
@@ -93,7 +95,7 @@ impl Variant {
                         panic!("tuple variants should contain exactly one element");
                     }
                     quote! {
-                        #variant_name => {
+                        #b_variant_name => {
                             let val = Some(<#deserializer_type as ::rustical_xml::XmlDeserialize>::deserialize(reader, start, empty)?);
                             Ok(Self::#ident(val))
                         }
@@ -104,7 +106,7 @@ impl Variant {
                         panic!("tuple variants should contain exactly one element");
                     }
                     quote! {
-                        #variant_name => {
+                        #b_variant_name => {
                             let val = <#deserializer_type as ::rustical_xml::XmlDeserialize>::deserialize(reader, start, empty)?;
                             Ok(Self::#ident(val))
                         }
@@ -112,7 +114,7 @@ impl Variant {
                 }
                 (false, Fields::Unit, _) => {
                     quote! {
-                        #variant_name => {
+                        #b_variant_name => {
                             // Make sure that content is still consumed
                             <() as ::rustical_xml::XmlDeserialize>::deserialize(reader, start, empty)?;
                             Ok(Self::#ident)
diff --git a/crates/xml/derive/src/xml_enum/impl_prop_name.rs b/crates/xml/derive/src/xml_enum/impl_prop_name.rs
index 469b7e6..3183fa1 100644
--- a/crates/xml/derive/src/xml_enum/impl_prop_name.rs
+++ b/crates/xml/derive/src/xml_enum/impl_prop_name.rs
@@ -111,8 +111,7 @@ impl Enum {
                     Some(ns) => quote! { Some(#ns) },
                     None => quote! { None },
                 };
-                let b_xml_name = variant.xml_name().value();
-                let xml_name = String::from_utf8_lossy(&b_xml_name);
+                let xml_name = variant.xml_name().value();
                 let out = quote! {(#ns, #xml_name)};
 
                 let ident = &variant.variant.ident;
@@ -134,8 +133,7 @@ impl Enum {
 
             let str_to_unit_branches = tagged_variants.iter().map(|variant| {
                 let ident = &variant.variant.ident;
-                let b_xml_name = variant.xml_name().value();
-                let xml_name = String::from_utf8_lossy(&b_xml_name);
+                let xml_name = variant.xml_name().value();
                 if variant.attrs.prop.is_some() {
                     quote! { #xml_name => Ok(Self::#ident (Default::default())) }
                 } else {
diff --git a/crates/xml/derive/src/xml_enum/impl_se.rs b/crates/xml/derive/src/xml_enum/impl_se.rs
index aa3d186..f45d204 100644
--- a/crates/xml/derive/src/xml_enum/impl_se.rs
+++ b/crates/xml/derive/src/xml_enum/impl_se.rs
@@ -16,8 +16,8 @@ impl Enum {
                 fn serialize(
                     &self,
                     ns: Option<::quick_xml::name::Namespace>,
-                    tag: Option<&[u8]>,
-                    namespaces: &::std::collections::HashMap<::quick_xml::name::Namespace, &[u8]>,
+                    tag: Option<&str>,
+                    namespaces: &::std::collections::HashMap<::quick_xml::name::Namespace, &str>,
                     writer: &mut ::quick_xml::Writer<&mut Vec<u8>>
                 ) -> ::std::io::Result<()> {
                     use ::quick_xml::events::{BytesEnd, BytesStart, BytesText, Event};
@@ -25,14 +25,16 @@ impl Enum {
                     let prefix = ns
                         .map(|ns| namespaces.get(&ns))
                         .unwrap_or(None)
-                        .map(|prefix| if !prefix.is_empty() {
-                            [*prefix, b":"].concat()
-                        } else {
-                            vec![]
-                        });
+                         .map(|prefix| {
+                             if !prefix.is_empty() {
+                                format!("{prefix}:")
+                             } else {
+                                String::new()
+                             }
+                         });
                     let has_prefix = prefix.is_some();
                     let tagname = tag.map(|tag| [&prefix.unwrap_or_default(), tag].concat());
-                    let qname = tagname.as_ref().map(|tagname| ::quick_xml::name::QName(tagname));
+                    let qname = tagname.as_ref().map(|tagname| ::quick_xml::name::QName(tagname.as_bytes()));
 
                     const enum_untagged: bool = #enum_untagged;
 
diff --git a/crates/xml/derive/src/xml_enum/mod.rs b/crates/xml/derive/src/xml_enum/mod.rs
index 4b55475..d444649 100644
--- a/crates/xml/derive/src/xml_enum/mod.rs
+++ b/crates/xml/derive/src/xml_enum/mod.rs
@@ -108,8 +108,7 @@ impl Enum {
                     Some(ns) => quote! { Some(#ns) },
                     None => quote! { None },
                 };
-                let b_xml_name = variant.xml_name().value();
-                let xml_name = String::from_utf8_lossy(&b_xml_name);
+                let xml_name = variant.xml_name().value();
                 quote! {(#ns, #xml_name)}
             });
 
diff --git a/crates/xml/derive/src/xml_struct/impl_se.rs b/crates/xml/derive/src/xml_struct/impl_se.rs
index bff0a65..07e019b 100644
--- a/crates/xml/derive/src/xml_struct/impl_se.rs
+++ b/crates/xml/derive/src/xml_struct/impl_se.rs
@@ -33,7 +33,7 @@ impl NamedStruct {
                 let field_index = field.target_field_index();
                 quote! {
                     ::quick_xml::events::attributes::Attribute {
-                        key: ::quick_xml::name::QName(#field_name),
+                        key: ::quick_xml::name::QName(#field_name.as_bytes()),
                         value: ::std::borrow::Cow::from(::rustical_xml::ValueSerialize::serialize(&self.#field_index).into_bytes())
                     }
                 }
@@ -47,7 +47,7 @@ impl NamedStruct {
                 let field_index = field.target_field_index();
                 quote! {
                     let tag_str = self.#field_index.to_string();
-                    let tag = Some(tag.unwrap_or(tag_str.as_bytes()));
+                    let tag = Some(tag.unwrap_or(tag_str.as_str()));
                 }
             });
 
@@ -90,8 +90,8 @@ impl NamedStruct {
                 fn serialize(
                     &self,
                     ns: Option<::quick_xml::name::Namespace>,
-                    tag: Option<&[u8]>,
-                    namespaces: &::std::collections::HashMap<::quick_xml::name::Namespace, &[u8]>,
+                    tag: Option<&str>,
+                    namespaces: &::std::collections::HashMap<::quick_xml::name::Namespace, &str>,
                     writer: &mut ::quick_xml::Writer<&mut Vec<u8>>
                 ) -> ::std::io::Result<()> {
                     use ::quick_xml::events::{BytesEnd, BytesStart, BytesText, Event};
@@ -104,15 +104,15 @@ impl NamedStruct {
                          .unwrap_or(None)
                          .map(|prefix| {
                              if !prefix.is_empty() {
-                                 [*prefix, b":"].concat()
+                                format!("{prefix}:")
                              } else {
-                                 Vec::new()
+                                String::new()
                              }
                          });
                      let has_prefix = prefix.is_some();
                      let tagname = tag.map(|tag| [&prefix.unwrap_or_default(), tag].concat());
-                     let qname = tagname.as_ref().map(|tagname| ::quick_xml::name::QName(tagname));
-                    //
+                     let qname = tagname.as_ref().map(|tagname| ::quick_xml::name::QName(tagname.as_bytes()));
+
                     if let Some(qname) = &qname {
                         let mut bytes_start = BytesStart::from(qname.to_owned());
                         if !has_prefix {
diff --git a/crates/xml/derive/src/xml_struct/mod.rs b/crates/xml/derive/src/xml_struct/mod.rs
index f4fa309..d79ae4f 100644
--- a/crates/xml/derive/src/xml_struct/mod.rs
+++ b/crates/xml/derive/src/xml_struct/mod.rs
@@ -68,7 +68,7 @@ impl NamedStruct {
                 .ns_prefix
                 .iter()
                 .map(|(ns, prefix)| {
-                    quote! { (#ns, #prefix.as_ref()) }
+                    quote! { (#ns, #prefix) }
                 })
                 .collect()
         } else {
@@ -77,9 +77,9 @@ impl NamedStruct {
 
         quote! {
             impl #impl_generics ::rustical_xml::XmlRootTag for #ident #type_generics #where_clause {
-                fn root_tag() -> &'static [u8] { #root }
+                fn root_tag() -> &'static str { #root }
                 fn root_ns() -> Option<::quick_xml::name::Namespace<'static>> { #ns }
-                fn root_ns_prefixes() -> ::std::collections::HashMap<::quick_xml::name::Namespace<'static>, &'static [u8]> {
+                fn root_ns_prefixes() -> ::std::collections::HashMap<::quick_xml::name::Namespace<'static>, &'static str> {
                     ::std::collections::HashMap::from_iter(vec![
                         #(#prefixes),*
                     ])
diff --git a/crates/xml/src/de.rs b/crates/xml/src/de.rs
index edcf220..458ab69 100644
--- a/crates/xml/src/de.rs
+++ b/crates/xml/src/de.rs
@@ -49,7 +49,7 @@ impl<T: XmlRootTag + XmlDeserialize> XmlDocument for T {
                     let (ns, name) = reader.resolve_element(start.name());
                     let matches = match (Self::root_ns(), &ns, name) {
                         // Wrong tag
-                        (_, _, name) if name.as_ref() != Self::root_tag() => false,
+                        (_, _, name) if name.as_ref() != Self::root_tag().as_bytes() => false,
                         // Wrong namespace
                         (Some(root_ns), ns, _) if &ResolveResult::Bound(root_ns) != ns => false,
                         _ => true,
@@ -60,7 +60,7 @@ impl<T: XmlRootTag + XmlDeserialize> XmlDocument for T {
                             format!("{ns:?}"),
                             String::from_utf8_lossy(name.as_ref()).to_string(),
                             format!("{root_ns:?}"),
-                            String::from_utf8_lossy(Self::root_tag()).to_string(),
+                            Self::root_tag().to_owned(),
                         ));
                     };
 
diff --git a/crates/xml/src/lib.rs b/crates/xml/src/lib.rs
index 6195fc7..b28737a 100644
--- a/crates/xml/src/lib.rs
+++ b/crates/xml/src/lib.rs
@@ -23,9 +23,9 @@ pub use xml_derive::PropName;
 pub use xml_derive::XmlRootTag;
 
 pub trait XmlRootTag {
-    fn root_tag() -> &'static [u8];
+    fn root_tag() -> &'static str;
     fn root_ns() -> Option<Namespace<'static>>;
-    fn root_ns_prefixes() -> HashMap<Namespace<'static>, &'static [u8]>;
+    fn root_ns_prefixes() -> HashMap<Namespace<'static>, &'static str>;
 }
 
 #[derive(Debug)]
diff --git a/crates/xml/src/namespace.rs b/crates/xml/src/namespace.rs
index 9cb496f..c3a97df 100644
--- a/crates/xml/src/namespace.rs
+++ b/crates/xml/src/namespace.rs
@@ -28,7 +28,7 @@ impl<'a> From<&'a Namespace<'a>> for NamespaceOwned {
 }
 
 impl NamespaceOwned {
-    pub fn as_ref(&self) -> Namespace {
+    pub fn as_ref(&self) -> Namespace<'_> {
         Namespace(&self.0)
     }
 }
diff --git a/crates/xml/src/se.rs b/crates/xml/src/se.rs
index 156e0e3..4d0365c 100644
--- a/crates/xml/src/se.rs
+++ b/crates/xml/src/se.rs
@@ -10,8 +10,8 @@ pub trait XmlSerialize {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()>;
 
@@ -22,8 +22,8 @@ impl<T: XmlSerialize> XmlSerialize for Option<T> {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         if let Some(some) = self {
@@ -60,8 +60,8 @@ impl XmlSerialize for () {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         let prefix = ns
@@ -69,14 +69,14 @@ impl XmlSerialize for () {
             .unwrap_or(None)
             .map(|prefix| {
                 if !prefix.is_empty() {
-                    [*prefix, b":"].concat()
+                    [*prefix, ":"].concat()
                 } else {
-                    Vec::new()
+                    String::new()
                 }
             });
         let has_prefix = prefix.is_some();
         let tagname = tag.map(|tag| [&prefix.unwrap_or_default(), tag].concat());
-        let qname = tagname.as_ref().map(|tagname| QName(tagname));
+        let qname = tagname.as_ref().map(|tagname| QName(tagname.as_bytes()));
         if let Some(qname) = &qname {
             let mut bytes_start = BytesStart::from(qname.to_owned());
             if !has_prefix && let Some(ns) = &ns {
diff --git a/crates/xml/src/value.rs b/crates/xml/src/value.rs
index 5914eff..2735f60 100644
--- a/crates/xml/src/value.rs
+++ b/crates/xml/src/value.rs
@@ -107,8 +107,8 @@ impl<T: ValueSerialize> XmlSerialize for T {
     fn serialize(
         &self,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut quick_xml::Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         let prefix = ns
@@ -116,20 +116,18 @@ impl<T: ValueSerialize> XmlSerialize for T {
             .unwrap_or(None)
             .map(|prefix| {
                 if !prefix.is_empty() {
-                    [*prefix, b":"].concat()
+                    [*prefix, ":"].concat()
                 } else {
-                    Vec::new()
+                    String::new()
                 }
             });
         let has_prefix = prefix.is_some();
         let tagname = tag.map(|tag| [&prefix.unwrap_or_default(), tag].concat());
-        let qname = tagname.as_ref().map(|tagname| QName(tagname));
+        let qname = tagname.as_ref().map(|tagname| QName(tagname.as_bytes()));
         if let Some(qname) = &qname {
             let mut bytes_start = BytesStart::from(qname.to_owned());
-            if !has_prefix {
-                if let Some(ns) = &ns {
-                    bytes_start.push_attribute((b"xmlns".as_ref(), ns.as_ref()));
-                }
+            if !has_prefix && let Some(ns) = &ns {
+                bytes_start.push_attribute((b"xmlns".as_ref(), ns.as_ref()));
             }
             writer.write_event(Event::Start(bytes_start))?;
         }
diff --git a/crates/xml/tests/de_enum.rs b/crates/xml/tests/de_enum.rs
index 319b777..0bc66e4 100644
--- a/crates/xml/tests/de_enum.rs
+++ b/crates/xml/tests/de_enum.rs
@@ -1,9 +1,9 @@
-use rustical_xml::{de::XmlDocument, XmlDeserialize, XmlRootTag};
+use rustical_xml::{XmlDeserialize, XmlRootTag, de::XmlDocument};
 
 #[test]
 fn test_struct_tagged_enum() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"propfind")]
+    #[xml(root = "propfind")]
     struct Propfind {
         prop: Prop,
     }
@@ -58,7 +58,7 @@ fn test_struct_tagged_enum() {
 #[test]
 fn test_tagged_enum_complex() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"propfind")]
+    #[xml(root = "propfind")]
     struct Propfind {
         prop: PropStruct,
     }
@@ -116,7 +116,7 @@ fn test_enum_document() {
 #[test]
 fn test_untagged_enum() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         prop: PropElement,
     }
diff --git a/crates/xml/tests/de_struct.rs b/crates/xml/tests/de_struct.rs
index 410fd01..70c1450 100644
--- a/crates/xml/tests/de_struct.rs
+++ b/crates/xml/tests/de_struct.rs
@@ -6,7 +6,7 @@ use std::collections::HashSet;
 #[test]
 fn test_struct_text_field() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "text")]
         text: String,
@@ -27,7 +27,7 @@ fn test_struct_text_field() {
 #[test]
 fn test_struct_document() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Child,
     }
@@ -52,9 +52,9 @@ fn test_struct_document() {
 #[test]
 fn test_struct_rename_field() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
-        #[xml(rename = b"ok-wow")]
+        #[xml(rename = "ok-wow")]
         child: Child,
     }
 
@@ -78,7 +78,7 @@ fn test_struct_rename_field() {
 #[test]
 fn test_struct_optional_field() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Option<Child>,
     }
@@ -96,9 +96,9 @@ fn test_struct_optional_field() {
 #[test]
 fn test_struct_vec() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
-        #[xml(rename = b"child", flatten)]
+        #[xml(rename = "child", flatten)]
         children: Vec<Child>,
     }
 
@@ -124,9 +124,9 @@ fn test_struct_vec() {
 #[test]
 fn test_struct_set() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
-        #[xml(rename = b"child", flatten)]
+        #[xml(rename = "child", flatten)]
         children: HashSet<Child>,
     }
 
@@ -154,7 +154,7 @@ fn test_struct_ns() {
     const NS_HELLO: Namespace = Namespace(b"hello");
 
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ns = "NS_HELLO")]
         child: (),
@@ -169,7 +169,7 @@ fn test_struct_attr() {
     const NS_HELLO: Namespace = Namespace(b"hello");
 
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ns = "NS_HELLO")]
         child: (),
@@ -196,7 +196,7 @@ fn test_struct_attr() {
 #[test]
 fn test_struct_generics() {
     #[derive(XmlDeserialize, XmlRootTag)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document<T: XmlDeserialize> {
         #[allow(dead_code)]
         child: T,
@@ -217,7 +217,7 @@ fn test_struct_generics() {
 #[test]
 fn test_struct_unparsed() {
     #[derive(XmlDeserialize, XmlRootTag)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[allow(dead_code)]
         child: Unparsed,
@@ -238,7 +238,7 @@ fn test_struct_unparsed() {
 #[test]
 fn test_xml_values() {
     #[derive(XmlDeserialize, XmlRootTag, PartialEq, Debug)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         href: String,
     }
@@ -262,7 +262,7 @@ fn test_xml_values() {
 #[test]
 fn test_xml_cdata() {
     #[derive(XmlDeserialize, XmlRootTag, PartialEq, Debug)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "text")]
         hello: String,
@@ -293,7 +293,7 @@ fn test_xml_cdata() {
 #[test]
 fn test_struct_xml_decl() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Child,
     }
@@ -323,7 +323,7 @@ fn test_struct_xml_decl() {
 #[test]
 fn test_struct_tuple() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Child,
     }
@@ -348,7 +348,7 @@ fn test_struct_tuple() {
 #[test]
 fn test_struct_untagged_ns() {
     #[derive(Debug, XmlDeserialize, XmlRootTag, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "untagged")]
         child: Child,
diff --git a/crates/xml/tests/enum_variants.rs b/crates/xml/tests/enum_variants.rs
index 41356e6..f322e10 100644
--- a/crates/xml/tests/enum_variants.rs
+++ b/crates/xml/tests/enum_variants.rs
@@ -29,7 +29,7 @@ enum CalendarProp {
     #[allow(dead_code)]
     Getcontenttype(&'static str),
 
-    #[xml(ns = "NS_DAV", rename = b"principal-URL")]
+    #[xml(ns = "NS_DAV", rename = "principal-URL")]
     #[allow(dead_code)]
     PrincipalUrl,
     #[allow(dead_code)]
diff --git a/crates/xml/tests/propertyupdate.rs b/crates/xml/tests/propertyupdate.rs
index 0dac1c7..2c1a0ac 100644
--- a/crates/xml/tests/propertyupdate.rs
+++ b/crates/xml/tests/propertyupdate.rs
@@ -36,7 +36,7 @@ fn test_propertyupdate() {
     }
 
     #[derive(XmlDeserialize, XmlRootTag)]
-    #[xml(root = b"propertyupdate")]
+    #[xml(root = "propertyupdate")]
     struct PropertyupdateElement<T: XmlDeserialize> {
         #[xml(ty = "untagged", flatten)]
         #[allow(dead_code)]
diff --git a/crates/xml/tests/se_enum.rs b/crates/xml/tests/se_enum.rs
index 639b73d..23e25c0 100644
--- a/crates/xml/tests/se_enum.rs
+++ b/crates/xml/tests/se_enum.rs
@@ -3,7 +3,7 @@ use rustical_xml::{XmlRootTag, XmlSerialize, XmlSerializeRoot};
 #[test]
 fn test_struct_value_tagged() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"propfind")]
+    #[xml(root = "propfind")]
     struct Document {
         prop: Prop,
     }
diff --git a/crates/xml/tests/se_struct.rs b/crates/xml/tests/se_struct.rs
index dd7f75a..160b277 100644
--- a/crates/xml/tests/se_struct.rs
+++ b/crates/xml/tests/se_struct.rs
@@ -7,7 +7,7 @@ use xml_derive::XmlDeserialize;
 #[test]
 fn test_struct_document() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Child,
     }
@@ -30,7 +30,7 @@ fn test_struct_document() {
 #[test]
 fn test_struct_untagged_attr() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "attr")]
         name: String,
@@ -57,7 +57,7 @@ fn test_struct_untagged_attr() {
 #[test]
 fn test_struct_value_tagged() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         href: String,
         num: usize,
@@ -82,7 +82,7 @@ fn test_struct_value_tagged() {
 #[test]
 fn test_struct_value_untagged() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "untagged")]
         href: String,
@@ -103,7 +103,7 @@ fn test_struct_value_untagged() {
 #[test]
 fn test_struct_vec() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(flatten)]
         href: Vec<String>,
@@ -127,7 +127,7 @@ fn test_struct_vec() {
 #[test]
 fn test_struct_serialize_with() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(serialize_with = "serialize_href")]
         href: String,
@@ -136,8 +136,8 @@ fn test_struct_serialize_with() {
     fn serialize_href(
         val: &str,
         ns: Option<Namespace>,
-        tag: Option<&[u8]>,
-        namespaces: &HashMap<Namespace, &[u8]>,
+        tag: Option<&str>,
+        namespaces: &HashMap<Namespace, &str>,
         writer: &mut Writer<&mut Vec<u8>>,
     ) -> std::io::Result<()> {
         val.to_uppercase().serialize(ns, tag, namespaces, writer)
@@ -160,7 +160,7 @@ fn test_struct_serialize_with() {
 #[test]
 fn test_struct_tag_list() {
     #[derive(Debug, XmlRootTag, XmlSerialize, XmlDeserialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         #[xml(ty = "untagged", flatten)]
         tags: Vec<Tag>,
@@ -194,9 +194,9 @@ fn test_struct_ns() {
     const NS: Namespace = quick_xml::name::Namespace(b"NS:TEST:");
 
     #[derive(Debug, XmlRootTag, XmlSerialize)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
-        #[xml(ns = "NS", rename = b"okay")]
+        #[xml(ns = "NS", rename = "okay")]
         child: String,
     }
 
@@ -210,7 +210,7 @@ fn test_struct_ns() {
 #[test]
 fn test_struct_tuple() {
     #[derive(Debug, XmlRootTag, XmlSerialize, PartialEq)]
-    #[xml(root = b"document")]
+    #[xml(root = "document")]
     struct Document {
         child: Child,
     }
@@ -230,8 +230,8 @@ fn test_tuple_struct() {
     const NS: Namespace = quick_xml::name::Namespace(b"NS:TEST:");
 
     #[derive(Debug, XmlRootTag, XmlSerialize)]
-    #[xml(root = b"document")]
-    struct Document(#[xml(ns = "NS", rename = b"okay")] String);
+    #[xml(root = "document")]
+    struct Document(#[xml(ns = "NS", rename = "okay")] String);
 
     Document("hello!".to_string())
         .serialize_to_string()