1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/notifier.py b/synapse/notifier.py
index e650c3e494..82f391481c 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -25,7 +25,7 @@ from synapse.api.errors import AuthError
 from synapse.handlers.presence import format_user_presence_state
 from synapse.metrics import LaterGauge
 from synapse.types import StreamToken
-from synapse.util.async import (
+from synapse.util.async_helpers import (
     DeferredTimeoutError,
     ObservableDeferred,
     add_timeout_to_deferred,