Index: ace/component/src/org/icefaces/ace/component/ajax/AjaxBehaviorRenderer.java
===================================================================
--- ace/component/src/org/icefaces/ace/component/ajax/AjaxBehaviorRenderer.java	(revision 28309)
+++ ace/component/src/org/icefaces/ace/component/ajax/AjaxBehaviorRenderer.java	(revision )
@@ -78,9 +78,14 @@
         JSONBuilder jb = JSONBuilder.create();
 		jb.beginFunction("ice.ace.ab");
 
+        jb.beginMap();
+
         //source
-		jb.beginMap()
-			.entry("source", source);
+        if (source != null) {
+			jb.entry("source", source);
+        } else {
+            jb.entry("source", clientId);
+        }
 		
         //execute
 		String execute = null;