diff --git a/synapse/replication/slave/storage/events.py b/synapse/replication/slave/storage/events.py
index 15a025a01..d72ff6055 100644
--- a/synapse/replication/slave/storage/events.py
+++ b/synapse/replication/slave/storage/events.py
@@ -73,6 +73,9 @@ class SlavedEventStore(BaseSlavedStore):
     # to reach inside the __dict__ to extract them.
     get_rooms_for_user = RoomMemberStore.__dict__["get_rooms_for_user"]
     get_users_in_room = RoomMemberStore.__dict__["get_users_in_room"]
+    get_users_who_share_room_with_user = (
+        RoomMemberStore.__dict__["get_users_who_share_room_with_user"]
+    )
     get_latest_event_ids_in_room = EventFederationStore.__dict__[
         "get_latest_event_ids_in_room"
     ]