1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/notifier.py b/synapse/notifier.py
index 46b1840a6d..a253f149a2 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -50,6 +50,7 @@ class _NotificationListener(object):
     def __init__(self, deferred, timeout):
         self.deferred = deferred
         self.created = int(time.time() * 1000)
+        self.timeout = timeout
 
     def notified(self):
         return self.deferred.called