diff --git a/runtime/src/main/resources/META-INF/quarkus-extension.yaml b/runtime/src/main/resources/META-INF/quarkus-extension.yaml
index 7aa7a2a..f015557 100644
--- a/runtime/src/main/resources/META-INF/quarkus-extension.yaml
+++ b/runtime/src/main/resources/META-INF/quarkus-extension.yaml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
 name: Google Cloud JSON Logging
 description: Logs to standard output in Google-Cloud-compatible JSON format.
 metadata: