diff --git a/core/src/main/resources/org/apache/struts2/static/dojo/src/widget/ComboBox.js b/core/src/main/resources/org/apache/struts2/static/dojo/src/widget/ComboBox.js
index ac4056553..f063d5f95 100644
--- a/core/src/main/resources/org/apache/struts2/static/dojo/src/widget/ComboBox.js
+++ b/core/src/main/resources/org/apache/struts2/static/dojo/src/widget/ComboBox.js
@@ -144,6 +144,10 @@ dojo.widget.ComboBoxDataProvider = function(/*Array*/ dataPairs, /*Number*/ limi
 			searchStr = searchStr.toLowerCase();
 		}
 		for(var x=0; x<this.data.length; x++){
+            if(!this.data[x]) {
+                //needed for IE
+                continue;
+            }
 			if((!ignoreLimit)&&(ret.length >= this.searchLimit)){
 				break;
 			}