diff --git a/server/utils/send_notifications.py b/server/utils/send_notifications.py
index c6d4d7a3..974593ed 100644
--- a/server/utils/send_notifications.py
+++ b/server/utils/send_notifications.py
@@ -1,3 +1,6 @@
+# Copyright (c) 2024 PLANKA Software GmbH
+# Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+
 import sys
 import json
 import logging