diff --git a/examples/spring-boot/src/main/resources/logging.properties b/examples/spring-boot/src/main/resources/logging.properties
index e80e0c6..31aebd7 100644
--- a/examples/spring-boot/src/main/resources/logging.properties
+++ b/examples/spring-boot/src/main/resources/logging.properties
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 handlers = eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultConsoleHandler
 .level = INFO