diff --git a/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/DockerImageNames.kt b/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/DockerImageNames.kt
index 89f5635..c40e2c3 100644
--- a/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/DockerImageNames.kt
+++ b/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/DockerImageNames.kt
@@ -1,3 +1,18 @@
+/**
+ * Copyright 2019-present HiveMQ GmbH
+ *
+ * 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
+ *
+ *     http://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.
+ */
 package com.hivemq.extensions.aws.cloudwatch
 
 import org.testcontainers.utility.DockerImageName
diff --git a/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/EndToEndIT.kt b/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/EndToEndIT.kt
index a1cc1fe..de56482 100644
--- a/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/EndToEndIT.kt
+++ b/src/integrationTest/kotlin/com/hivemq/extensions/aws/cloudwatch/EndToEndIT.kt
@@ -1,3 +1,18 @@
+/**
+ * Copyright 2019-present HiveMQ GmbH
+ *
+ * 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
+ *
+ *     http://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.
+ */
 package com.hivemq.extensions.aws.cloudwatch
 
 import com.hivemq.client.mqtt.mqtt5.Mqtt5Client
diff --git a/src/integrationTest/resources/extension-config.xml b/src/integrationTest/resources/extension-config.xml
index 2f740b7..9676a5c 100644
--- a/src/integrationTest/resources/extension-config.xml
+++ b/src/integrationTest/resources/extension-config.xml
@@ -1,4 +1,21 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!--
+
+    Copyright 2019-present HiveMQ GmbH
+
+    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
+
+        http://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.
+
+-->
 <cloudwatch-extension-configuration>
     <aws-endpoint-override>http://localstack:4566</aws-endpoint-override>
     <report-interval>1</report-interval>