diff --git a/endpoints/api/repositorynotification.py b/endpoints/api/repositorynotification.py
index 9a812050c..6ff5bb7f2 100644
--- a/endpoints/api/repositorynotification.py
+++ b/endpoints/api/repositorynotification.py
@@ -193,6 +193,9 @@ class TestRepositoryNotification(RepositoryParamResource):
       raise NotFound()
 
     event_info = NotificationEvent.get_event(test_note.event.name)
+
+    # TODO(jschorr): Stop depending on the worker module's data interface and instead only depend
+    # on the notification's data interface (to be added).
     sample_data = event_info.get_sample_data(notification(test_note))
 
     notification_data = build_notification_data(test_note, sample_data)