diff --git a/crates/store/src/calendar.rs b/crates/store/src/calendar.rs
index 357b29c..579bc8c 100644
--- a/crates/store/src/calendar.rs
+++ b/crates/store/src/calendar.rs
@@ -18,6 +18,7 @@ pub trait CalendarStore: Send + Sync + 'static {
     async fn get_calendar(&self, id: &str) -> Result<Calendar>;
     async fn get_calendars(&self, owner: &str) -> Result<Vec<Calendar>>;
     async fn insert_calendar(&mut self, cid: String, calendar: Calendar) -> Result<()>;
+    async fn delete_calendar(&mut self, cid: &str) -> Result<()>;
 
     async fn get_events(&self, cid: &str) -> Result<Vec<Event>>;
     async fn get_event(&self, cid: &str, uid: &str) -> Result<Event>;
diff --git a/crates/store/src/sqlite_store.rs b/crates/store/src/sqlite_store.rs
index e2a51c7..115da45 100644
--- a/crates/store/src/sqlite_store.rs
+++ b/crates/store/src/sqlite_store.rs
@@ -66,6 +66,13 @@ impl CalendarStore for SqliteCalendarStore {
         Ok(())
     }
 
+    async fn delete_calendar(&mut self, cid: &str) -> Result<()> {
+        sqlx::query!("DELETE FROM calendars WHERE id = ?", cid)
+            .execute(&self.db)
+            .await?;
+        Ok(())
+    }
+
     async fn get_events(&self, cid: &str) -> Result<Vec<Event>> {
         let events = sqlx::query_as!(EventRow, "SELECT uid, ics FROM events WHERE cid = ?", cid)
             .fetch_all(&self.db)
diff --git a/crates/store/src/toml_store.rs b/crates/store/src/toml_store.rs
index d5b24d9..6d28a55 100644
--- a/crates/store/src/toml_store.rs
+++ b/crates/store/src/toml_store.rs
@@ -66,6 +66,11 @@ impl CalendarStore for TomlCalendarStore {
         }
     }
 
+    async fn delete_calendar(&mut self, cid: &str) -> Result<()> {
+        self.events.remove(cid);
+        Ok(())
+    }
+
     async fn get_events(&self, cid: &str) -> Result<Vec<Event>> {
         if let Some(events) = self.events.get(cid) {
             Ok(events.values().cloned().collect())