1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/worker_lock.py b/synapse/handlers/worker_lock.py
index 7e578cf462..db998f6701 100644
--- a/synapse/handlers/worker_lock.py
+++ b/synapse/handlers/worker_lock.py
@@ -183,7 +183,7 @@ class WorkerLocksHandler:
             return
 
         def _wake_all_locks(
-            locks: Collection[Union[WaitingLock, WaitingMultiLock]]
+            locks: Collection[Union[WaitingLock, WaitingMultiLock]],
         ) -> None:
             for lock in locks:
                 deferred = lock.deferred