Index: src/main/java/org/apache/struts/validator/validwhen/ValidWhenParser.g
===================================================================
--- src/main/java/org/apache/struts/validator/validwhen/ValidWhenParser.g	(revision 502044)
+++ src/main/java/org/apache/struts/validator/validwhen/ValidWhenParser.g	(working copy)
@@ -241,6 +241,7 @@
  k=2;
 caseSensitive=false;
 defaultErrorHandler=false;
+charVocabulary='\40'..'\176';
 }
 tokens {
 ANDSIGN="and";