diff --git a/source/Ox.UI/js/Form/FormElementGroup.js b/source/Ox.UI/js/Form/FormElementGroup.js
index 28a83e46..2346a08d 100644
--- a/source/Ox.UI/js/Form/FormElementGroup.js
+++ b/source/Ox.UI/js/Form/FormElementGroup.js
@@ -79,7 +79,7 @@ Ox.FormElementGroup = function(options, self) {
 
     function getValue() {
         var value = self.options.elements.map(function($element) {
-            return $element.value();
+            return $element.value ? $element.value() : void 0;
         });
         return self.options.join ? self.options.join(value) : value;
     }
@@ -93,7 +93,7 @@ Ox.FormElementGroup = function(options, self) {
             ? self.options.split(self.options.value)
             : self.options.value;
         values.forEach(function(value, i) {
-            self.options.elements[i].value(value);
+            self.options.elements[i].value && self.options.elements[i].value(value);
         });
     }
 
@@ -116,7 +116,7 @@ Ox.FormElementGroup = function(options, self) {
     @*/
     that.value = function() {
         var values = self.options.elements.map(function(element) {
-            return element.value();
+            return element.value ? element.value() : void 0;
         });
         return self.options.joinValues
             ? self.options.joinValues(values)