1 files changed, 4 insertions, 1 deletions
diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py
index 7c15eb7440..49ce9d6dda 100644
--- a/synapse/push/mailer.py
+++ b/synapse/push/mailer.py
@@ -529,7 +529,10 @@ class Mailer:
         }
 
         the_events = await filter_events_for_client(
-            self._storage_controllers, user_id, results.events_before
+            self._storage_controllers,
+            user_id,
+            results.events_before,
+            msc4115_membership_on_events=self.hs.config.experimental.msc4115_membership_on_events,
         )
         the_events.append(notif_event)