diff --git a/asterix-external-data/src/main/resources/schema/library.xsd b/asterix-external-data/src/main/resources/schema/library.xsd
index 00f71f5..6ffd967f 100644
--- a/asterix-external-data/src/main/resources/schema/library.xsd
+++ b/asterix-external-data/src/main/resources/schema/library.xsd
@@ -1,4 +1,24 @@
 <?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"
 	xmlns:lib="library" targetNamespace="library" elementFormDefault="qualified">