diff --git a/tools/whisker/descriptor.xml b/tools/whisker/descriptor.xml
index 12458aa8f42..1b3797160ed 100644
--- a/tools/whisker/descriptor.xml
+++ b/tools/whisker/descriptor.xml
@@ -1,3 +1,21 @@
+<!--
+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.
+-->
 <manifest>
     <licenses>
         <license name='COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0' id='CDDL'