diff --git a/src/ooxml/java/org/apache/poi/xssf/model/Styles.java b/src/ooxml/java/org/apache/poi/xssf/model/Styles.java
index d217dad339..135581c7d0 100644
--- a/src/ooxml/java/org/apache/poi/xssf/model/Styles.java
+++ b/src/ooxml/java/org/apache/poi/xssf/model/Styles.java
@@ -1,3 +1,20 @@
+/* ====================================================================
+   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.
+==================================================================== */
+
 package org.apache.poi.xssf.model;
 
 import org.apache.poi.xssf.usermodel.XSSFCellStyle;
diff --git a/src/ooxml/java/org/apache/poi/xssf/model/Themes.java b/src/ooxml/java/org/apache/poi/xssf/model/Themes.java
index 8bc4d47436..7e0f427d7a 100644
--- a/src/ooxml/java/org/apache/poi/xssf/model/Themes.java
+++ b/src/ooxml/java/org/apache/poi/xssf/model/Themes.java
@@ -1,3 +1,20 @@
+/* ====================================================================
+   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.
+==================================================================== */
+
 package org.apache.poi.xssf.model;
 
 import org.apache.poi.xssf.usermodel.XSSFColor;