diff --git a/schema_transformations_utils.py b/schema_transformations_utils.py
index 34904a39a..d5cf58f68 100644
--- a/schema_transformations_utils.py
+++ b/schema_transformations_utils.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+"""JSON schema transformation utility functions."""
+
+__copyright__ = 'Copyright (c) 2024, Utrecht University'
+__license__   = 'GPLv3, see LICENSE'
+
 import re