diff --git a/pmd-xml/src/main/java/net/sourceforge/pmd/lang/xml/antlr4/XMLLexer.java b/pmd-xml/src/main/java/net/sourceforge/pmd/lang/xml/antlr4/XMLLexer.java
index 2425c51b9f..23221fe7cc 100644
--- a/pmd-xml/src/main/java/net/sourceforge/pmd/lang/xml/antlr4/XMLLexer.java
+++ b/pmd-xml/src/main/java/net/sourceforge/pmd/lang/xml/antlr4/XMLLexer.java
@@ -1,3 +1,6 @@
+/**
+ * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
+ */
 package net.sourceforge.pmd.lang.xml.antlr4;
 
 import org.antlr.v4.runtime.CharStream;