diff --git a/ui/scripts/cloud.core.iso.js b/ui/scripts/cloud.core.iso.js
index 12d8a5fe352..738737c0937 100644
--- a/ui/scripts/cloud.core.iso.js
+++ b/ui/scripts/cloud.core.iso.js
@@ -110,7 +110,8 @@ function initAddIsoDialog() {
         data: createURL("command=listZones&available=true"),
 	    dataType: "json",
 	    success: function(json) {	
-    	    g_zoneIds = [];
+    	    g_zoneIds = [];
+			g_zoneNames = [];
 		    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 f3e805da04d..72c55c85a4d 100644
--- a/ui/scripts/cloud.core.template.js
+++ b/ui/scripts/cloud.core.template.js
@@ -218,7 +218,8 @@ function afterLoadTemplateJSP() {
         data: createURL("command=listZones&available=true"),
 	    dataType: "json",
 	    success: function(json) {		        
-    	    g_zoneIds = [];
+    	    g_zoneIds = [];
+			g_zoneNames = [];
 		    var zones = json.listzonesresponse.zone;	 			     			    	
 		    if (zones != null && zones.length > 0) {
 		        for (var i = 0; i < zones.length; i++) {