1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py
index 6e7312266d..118b390e93 100644
--- a/synapse/storage/databases/main/room.py
+++ b/synapse/storage/databases/main/room.py
@@ -815,7 +815,7 @@ class RoomWorkerStore(SQLBaseStore):
                 If it is `None` media will be removed from quarantine
         """
         logger.info("Quarantining media: %s/%s", server_name, media_id)
-        is_local = server_name == self.config.server_name
+        is_local = server_name == self.config.server.server_name
 
         def _quarantine_media_by_id_txn(txn):
             local_mxcs = [media_id] if is_local else []