diff --git a/xwork-core/src/main/java/com/opensymphony/xwork2/validator/DefaultValidatorFileParser.java b/xwork-core/src/main/java/com/opensymphony/xwork2/validator/DefaultValidatorFileParser.java
index 464e22838..31dbc5b7d 100644
--- a/xwork-core/src/main/java/com/opensymphony/xwork2/validator/DefaultValidatorFileParser.java
+++ b/xwork-core/src/main/java/com/opensymphony/xwork2/validator/DefaultValidatorFileParser.java
@@ -113,6 +113,7 @@ public class DefaultValidatorFileParser implements ValidatorFileParser {
 
         Map<String, String> dtdMappings = new HashMap<String, String>();
         dtdMappings.put("-//Apache Struts//XWork Validator Config 1.0//EN", "xwork-validator-config-1.0.dtd");
+        dtdMappings.put("-//Apache Struts//XWork Validator Definition 1.0//EN", "xwork-validator-definition-1.0.dtd");
 
         Document doc = DomHelper.parse(in, dtdMappings);