diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index d816d4883..a54abb9ed 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -801,7 +801,8 @@ class EventsStore(EventsWorkerStore):
                     ]
                 )
 
-                self._curr_state_delta_stream_cache.entity_has_changed(
+                txn.call_after(
+                    self._curr_state_delta_stream_cache.entity_has_changed,
                     room_id, max_stream_order,
                 )