1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py
index 4e568de8c4..43eb1c78e9 100644
--- a/synapse/handlers/user_directory.py
+++ b/synapse/handlers/user_directory.py
@@ -46,6 +46,9 @@ class UserDirectoyHandler(object):
         self.state = hs.get_state_handler()
         self.server_name = hs.hostname
         self.clock = hs.get_clock()
+        self.notifier = hs.get_notifier()
+
+        self.notifier.add_replication_callback(self.notify_new_event)
 
         # When start up for the first time we need to populate the user_directory.
         # This is a set of user_id's we've inserted already