diff --git a/crates/xml/derive/src/xml_struct.rs b/crates/xml/derive/src/xml_struct.rs
index ba714c4..37309b8 100644
--- a/crates/xml/derive/src/xml_struct.rs
+++ b/crates/xml/derive/src/xml_struct.rs
@@ -196,10 +196,11 @@ impl NamedStruct {
             .filter(|field| field.attrs.xml_ty == FieldType::Attr)
             .map(|field| {
                 let field_name = field.xml_name();
+                let field_ident = field.field_ident();
                 quote! {
                     ::quick_xml::events::attributes::Attribute {
                         key: ::quick_xml::name::QName(#field_name),
-                        value: b"hello".into()
+                        value: ::std::borrow::Cow::from(::rustical_xml::Value::serialize(&self.#field_ident).into_bytes())
                     }
                 }
             });
diff --git a/crates/xml/tests/se_struct.rs b/crates/xml/tests/se_struct.rs
index 78f2b67..e7b53e1 100644
--- a/crates/xml/tests/se_struct.rs
+++ b/crates/xml/tests/se_struct.rs
@@ -63,17 +63,19 @@ fn test_struct_value_tagged() {
     #[xml(root = b"document")]
     struct Document {
         href: String,
+        num: usize,
     }
 
     let mut buf = Vec::new();
     let mut writer = quick_xml::Writer::new(&mut buf);
     Document {
         href: "okay".to_owned(),
+        num: 123,
     }
     .serialize_root(&mut writer)
     .unwrap();
     let out = String::from_utf8(buf).unwrap();
-    assert_eq!(out, "<document><href>okay</href></document>");
+    assert_eq!(out, "<document><href>okay</href><num>123</num></document>");
 }
 
 #[test]
@@ -88,10 +90,10 @@ fn test_struct_value_untagged() {
     let mut buf = Vec::new();
     let mut writer = quick_xml::Writer::new(&mut buf);
     Document {
-        href: "okay".to_owned(),
+        href: "okays".to_owned(),
     }
     .serialize_root(&mut writer)
     .unwrap();
     let out = String::from_utf8(buf).unwrap();
-    assert_eq!(out, "<document>okay</document>");
+    assert_eq!(out, "<document>okays</document>");
 }