diff --git a/maven-plugin-api/src/test/resources/plugin.xml b/maven-plugin-api/src/test/resources/plugin.xml
index c5d4e8a467..49db31671c 100644
--- a/maven-plugin-api/src/test/resources/plugin.xml
+++ b/maven-plugin-api/src/test/resources/plugin.xml
@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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.
+-->
+
 <plugin>
   <description>plugin-description</description>
   <groupId>org.apache.maven.plugins</groupId>