diff --git a/src/api/client_server/sync.rs b/src/api/client_server/sync.rs
index e0c6e0b9..ee366dd7 100644
--- a/src/api/client_server/sync.rs
+++ b/src/api/client_server/sync.rs
@@ -289,11 +289,15 @@ async fn sync_helper(
     }
 
     let mut left_rooms = BTreeMap::new();
-    let all_left_rooms: Vec<_> = services()
-        .rooms
-        .state_cache
-        .rooms_left(&sender_user)
-        .collect();
+    let all_left_rooms: Vec<_> = if filter.room.include_leave {
+        services()
+            .rooms
+            .state_cache
+            .rooms_left(&sender_user)
+            .collect()
+    } else {
+        Vec::default()
+    };
     for result in all_left_rooms {
         let (room_id, _) = result?;