diff --git a/configure.sh b/configure.sh
index f81b9e8..12354b5 100755
--- a/configure.sh
+++ b/configure.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
+# SPDX-FileCopyrightText: WTF Kooperative eG <https://wtf-eg.de/>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 set -o errexit
 set +x