diff --git a/core/src/main/java/org/apache/struts2/components/URL.java b/core/src/main/java/org/apache/struts2/components/URL.java
index cd20a52b5..cc4e13722 100644
--- a/core/src/main/java/org/apache/struts2/components/URL.java
+++ b/core/src/main/java/org/apache/struts2/components/URL.java
@@ -293,7 +293,7 @@ public class URL extends ContextBean {
         this.windowState = windowState;
     }
 
-    @StrutsTagAttribute(description="Specifies if this should be a portlet render or action URL")
+    @StrutsTagAttribute(description="Specifies if this should be a portlet render or action URL. Default is \"render\". To create an action URL, use \"action\".")
     public void setPortletUrlType(String portletUrlType) {
         this.portletUrlType = portletUrlType;
     }