diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py
index 5d01ecf20..09417bd14 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -169,7 +169,6 @@ class StreamStore(SQLBaseStore):
             "limit": limit
         }
 
-
         def app_service_interested(row):
             if row["room_id"] in room_ids_for_as:
                 return True