Index: stripes/src/net/sourceforge/stripes/tag/LinkTagSupport.java
===================================================================
--- stripes/src/net/sourceforge/stripes/tag/LinkTagSupport.java	(revision 950)
+++ stripes/src/net/sourceforge/stripes/tag/LinkTagSupport.java	(working copy)
@@ -35,6 +35,7 @@
 public abstract class LinkTagSupport extends HtmlTagSupport implements ParameterizableTag {
     private Map<String,Object> parameters = new HashMap<String,Object>();
     private String event;
+    private boolean eventSet;
     private Object beanclass;
     private String url;
     private boolean addSourcePage = false;
@@ -81,8 +82,12 @@
     }
 
     /** Sets the (optional) event name that the link will trigger. */
-    public void setEvent(String event) { this.event = event; }
+    public void setEvent(String event) {
+        this.event = event;
 
+        eventSet = true;
+    }
+
     /** Gets the (optional) event name that the link will trigger. */
     public String getEvent() { return event; }
 
@@ -166,7 +171,7 @@
         // the HtmlTagSupport will HtmlEncode the ampersands for us
         String base = getPreferredBaseUrl();
         UrlBuilder builder = new UrlBuilder(pageContext.getRequest().getLocale(), base, false);
-        if (this.event != null) {
+        if (eventSet) {
             builder.setEvent(this.event);
         }
         if (addSourcePage) {