diff --git a/ui/scripts/configuration.js b/ui/scripts/configuration.js
index 6adbade76b0..869b876865c 100644
--- a/ui/scripts/configuration.js
+++ b/ui/scripts/configuration.js
@@ -522,7 +522,10 @@
                                     memory: {
                                         label: 'label.memory.mb',
                                         converter: function(args) {
-                                            return cloudStack.converters.convertBytes(args * 1024 * 1024);
+                                    	    if (args == undefined)
+                                    	    	return '';
+                                    	    else                                     	
+                                                return cloudStack.converters.convertBytes(args * 1024 * 1024);
                                         }
                                     },
                                     networkrate: {
@@ -1038,7 +1041,10 @@
                                     memory: {
                                         label: 'label.memory.mb',
                                         converter: function(args) {
-                                            return cloudStack.converters.convertBytes(args * 1024 * 1024);
+                                    	    if (args == undefined)
+                                	    	    return '';
+                                	        else 
+                                                return cloudStack.converters.convertBytes(args * 1024 * 1024);
                                         }
                                     },
                                     networkrate: {
diff --git a/ui/scripts/sharedFunctions.js b/ui/scripts/sharedFunctions.js
index 2a159675f31..9fa70e3bda4 100644
--- a/ui/scripts/sharedFunctions.js
+++ b/ui/scripts/sharedFunctions.js
@@ -900,6 +900,9 @@ var roleTypeDomainAdmin = "2";
 
 cloudStack.converters = {
     convertBytes: function(bytes) {
+	    if (bytes == undefined)
+	    	return '';
+	
         if (bytes < 1024 * 1024) {
             return (bytes / 1024).toFixed(2) + " KB";
         } else if (bytes < 1024 * 1024 * 1024) {