1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py
index 4f0adb136a..a77e49dc66 100644
--- a/synapse/storage/databases/main/roommember.py
+++ b/synapse/storage/databases/main/roommember.py
@@ -55,6 +55,7 @@ from synapse.types import JsonDict, PersistedEventPosition, StateMap, get_domain
 from synapse.util.async_helpers import Linearizer
 from synapse.util.caches import intern_string
 from synapse.util.caches.descriptors import _CacheContext, cached, cachedList
+from synapse.util.cancellation import cancellable
 from synapse.util.iterutils import batch_iter
 from synapse.util.metrics import Measure
 
@@ -770,6 +771,7 @@ class RoomMemberWorkerStore(EventsWorkerStore):
             _get_users_server_still_shares_room_with_txn,
         )
 
+    @cancellable
     async def get_rooms_for_user(
         self, user_id: str, on_invalidate: Optional[Callable[[], None]] = None
     ) -> FrozenSet[str]: