diff --git a/ui/scripts/cloud.core.iso.js b/ui/scripts/cloud.core.iso.js
index b03efa4d134..d7038ec50a2 100644
--- a/ui/scripts/cloud.core.iso.js
+++ b/ui/scripts/cloud.core.iso.js
@@ -109,7 +109,8 @@ function initAddIsoDialog() {
     $.ajax({
         data: createURL("command=listZones&available=true"),
 	    dataType: "json",
-	    success: function(json) {		        
+	    success: function(json) {	
+    	    g_zoneIds = [];
 		    var zones = json.listzonesresponse.zone;	 			     			    	
 		    if (zones != null && zones.length > 0) {
 		        for (var i = 0; i < zones.length; i++) {
diff --git a/ui/scripts/cloud.core.template.js b/ui/scripts/cloud.core.template.js
index 9206cbbf7b9..f93146daf58 100644
--- a/ui/scripts/cloud.core.template.js
+++ b/ui/scripts/cloud.core.template.js
@@ -217,7 +217,8 @@ function afterLoadTemplateJSP() {
     $.ajax({
         data: createURL("command=listZones&available=true"),
 	    dataType: "json",
-	    success: function(json) {		        
+	    success: function(json) {		        
+    	    g_zoneIds = [];
 		    var zones = json.listzonesresponse.zone;	 			     			    	
 		    if (zones != null && zones.length > 0) {
 		        for (var i = 0; i < zones.length; i++) {