diff --git a/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/charfilter/package.html b/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/charfilter/package.html
new file mode 100644
index 00000000000..6a21c5bdc4a
--- /dev/null
+++ b/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/charfilter/package.html
@@ -0,0 +1,22 @@
+<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
+<!--
+ 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.
+-->
+<html><head></head>
+<body>
+Filters that normalize text before tokenization.
+</body>
+</html>
