diff --git a/src/Umbraco.Web.UI.Client/src/common/directives/components/umbmediagrid.directive.js b/src/Umbraco.Web.UI.Client/src/common/directives/components/umbmediagrid.directive.js
index df9eb2f46e..cbd45b098e 100644
--- a/src/Umbraco.Web.UI.Client/src/common/directives/components/umbmediagrid.directive.js
+++ b/src/Umbraco.Web.UI.Client/src/common/directives/components/umbmediagrid.directive.js
@@ -149,7 +149,9 @@
          };
 
          var unbindItemsWatcher = scope.$watch('items', function(newValue, oldValue){
-            activate();
+            if(angular.isArray(newValue)) {
+               activate();
+            }
          });
 
          scope.$on('$destroy', function(){