1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/storage/directory.py b/synapse/storage/directory.py
index 2b2bdf8615..f3947bbe89 100644
--- a/synapse/storage/directory.py
+++ b/synapse/storage/directory.py
@@ -104,7 +104,7 @@ class DirectoryStore(SQLBaseStore):
                 },
                 desc="create_room_alias_association",
             )
-        self.get_aliases_for_room.invalidate(room_id)
+        self.get_aliases_for_room.invalidate((room_id,))
 
     @defer.inlineCallbacks
     def delete_room_alias(self, room_alias):
@@ -114,7 +114,7 @@ class DirectoryStore(SQLBaseStore):
             room_alias,
         )
 
-        self.get_aliases_for_room.invalidate(room_id)
+        self.get_aliases_for_room.invalidate((room_id,))
         defer.returnValue(room_id)
 
     def _delete_room_alias_txn(self, txn, room_alias):