diff --git a/scripts/build_cutout.py b/scripts/build_cutout.py
index e3490b13..79be84fc 100644
--- a/scripts/build_cutout.py
+++ b/scripts/build_cutout.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: : 2017-2021 The PyPSA-Eur Authors
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 """
 Create cutouts with `atlite <https://atlite.readthedocs.io/en/latest/>`_.