diff --git a/ephios/core/services/notifications/types.py b/ephios/core/services/notifications/types.py
index dbde8bed4..c09ade83a 100644
--- a/ephios/core/services/notifications/types.py
+++ b/ephios/core/services/notifications/types.py
@@ -583,7 +583,7 @@ def get_actions(cls, notification):
         event = Event.objects.get(pk=notification.data.get("event_id"))
         participation = AbstractParticipation.objects.filter(
             pk=notification.data.get("participation_id")
-        ).first()
+        ).first()  # there is no participation for responsible users
         return [
             (
                 str(_("View message")),