diff --git a/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RandomNumberParameterProvider.java b/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RandomNumberParameterProvider.java
index 93975ae..5d70079 100644
--- a/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RandomNumberParameterProvider.java
+++ b/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RandomNumberParameterProvider.java
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 package eu.mulk.quarkus.googlecloud.jsonlogging.example;
 
 import eu.mulk.quarkus.googlecloud.jsonlogging.KeyValueParameter;
diff --git a/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RootResource.java b/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RootResource.java
index 90cd587..eb4443b 100644
--- a/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RootResource.java
+++ b/examples/quarkus/src/main/java/eu/mulk/quarkus/googlecloud/jsonlogging/example/RootResource.java
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 package eu.mulk.quarkus.googlecloud.jsonlogging.example;
 
 import eu.mulk.quarkus.googlecloud.jsonlogging.KeyValueParameter;
diff --git a/examples/quarkus/src/main/resources/application.properties b/examples/quarkus/src/main/resources/application.properties
index e69de29..8b991a7 100644
--- a/examples/quarkus/src/main/resources/application.properties
+++ b/examples/quarkus/src/main/resources/application.properties
@@ -0,0 +1,3 @@
+# SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
\ No newline at end of file