diff --git a/synapse/storage/event_federation.py b/synapse/storage/event_federation.py
index f807236eb3..7ea0ee2323 100644
--- a/synapse/storage/event_federation.py
+++ b/synapse/storage/event_federation.py
@@ -343,7 +343,6 @@ class EventFederationStore(SQLBaseStore):
                 for e_id, _ in prev_events
             ])
 
-
             # Also delete from the backwards extremities table all ones that
             # reference events that we have already seen
             query = (
@@ -352,7 +351,6 @@ class EventFederationStore(SQLBaseStore):
             )
             txn.executemany(query, [(e_id, room_id) for e_id, _ in prev_events])
 
-
             txn.call_after(
                 self.get_latest_event_ids_in_room.invalidate, room_id
             )