diff --git a/app/assets/javascripts/admin/enterprises/controllers/enterprise_controller.js.coffee b/app/assets/javascripts/admin/enterprises/controllers/enterprise_controller.js.coffee
index ce9c92647a..59d8ba3f96 100644
--- a/app/assets/javascripts/admin/enterprises/controllers/enterprise_controller.js.coffee
+++ b/app/assets/javascripts/admin/enterprises/controllers/enterprise_controller.js.coffee
@@ -39,7 +39,8 @@ angular.module("admin.enterprises")
       if manager.id?
         for i, user of $scope.Enterprise.users when user.id == manager.id
           $scope.Enterprise.users.splice i, 1
-        $scope.enterprise_form.$dirty = true
+        if typeof($scope.enterprise_form) != 'undefined'
+          $scope.enterprise_form.$setDirty()
 
     $scope.addManager = (manager) ->
       if manager.id? and manager.email?