diff --git a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-dist/project-assembly.xml b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-dist/project-assembly.xml
index f69df7f59..cf578a3c7 100644
--- a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-dist/project-assembly.xml
+++ b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-dist/project-assembly.xml
@@ -1,3 +1,22 @@
+<?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.
+-->
 <assembly
     xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/extensions/guacamole-auth-ldap/src/main/assembly/dist.xml b/extensions/guacamole-auth-ldap/src/main/assembly/dist.xml
index 59a416b70..174e021cf 100644
--- a/extensions/guacamole-auth-ldap/src/main/assembly/dist.xml
+++ b/extensions/guacamole-auth-ldap/src/main/assembly/dist.xml
@@ -1,3 +1,22 @@
+<?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.
+-->
 <assembly
     xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/extensions/guacamole-auth-noauth/src/main/assembly/dist.xml b/extensions/guacamole-auth-noauth/src/main/assembly/dist.xml
index 834d5beff..94fed477b 100644
--- a/extensions/guacamole-auth-noauth/src/main/assembly/dist.xml
+++ b/extensions/guacamole-auth-noauth/src/main/assembly/dist.xml
@@ -1,3 +1,22 @@
+<?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.
+-->
 <assembly
     xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/guacamole-common-js/static.xml b/guacamole-common-js/static.xml
index e88abdce0..ec8c17754 100644
--- a/guacamole-common-js/static.xml
+++ b/guacamole-common-js/static.xml
@@ -1,3 +1,22 @@
+<?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.
+-->
 <assembly>
     <baseDirectory>guacamole-common-js</baseDirectory>
     <id>guacamole-common-js</id>
diff --git a/project-assembly.xml b/project-assembly.xml
index 7745bb935..d7fbebb67 100644
--- a/project-assembly.xml
+++ b/project-assembly.xml
@@ -1,3 +1,22 @@
+<?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.
+-->
 <assembly
     xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"