diff --git a/.github/scripts/generate_job_matrix.py b/.github/scripts/generate_job_matrix.py
index 6351636..9f96c4e 100755
--- a/.github/scripts/generate_job_matrix.py
+++ b/.github/scripts/generate_job_matrix.py
@@ -1,4 +1,20 @@
 #!/usr/bin/env python3
+#
+# Copyright (C) 2021-2022 F4PGA Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
 
 from sys import argv as sys_argv