diff --git a/maven-obr-plugin/src/main/resources/SchemaObr.xsd b/maven-obr-plugin/src/main/resources/SchemaObr.xsd
index 2a99c1b..63b63e9 100644
--- a/maven-obr-plugin/src/main/resources/SchemaObr.xsd
+++ b/maven-obr-plugin/src/main/resources/SchemaObr.xsd
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="ISO-8859-1" ?>
+<!--
+ 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.
+-->
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <!-- definition of simple elements -->
 
@@ -55,4 +73,4 @@
 	</xs:sequence>
   </xs:complexType>
 </xs:element>
-</xs:schema>
\ No newline at end of file
+</xs:schema>