diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 7a498af5a..348056add 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -612,7 +612,7 @@ class MessageHandler(BaseHandler):
         @defer.inlineCallbacks
         def _notify():
             yield run_on_reactor()
-            yield self.notifier.on_new_room_event(
+            self.notifier.on_new_room_event(
                 event, event_stream_id, max_stream_id,
                 extra_users=extra_users
             )