diff --git a/src/js/index.js b/src/js/index.js
index 442451a07..65e804203 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -581,7 +581,8 @@ app.directive('tagInput', function () {
         scope: {
             inputTags: '=taglist'
         },
-        link: function ($scope, element, attrs) {
+        require: '^form',
+        link: function ($scope, element, attrs, formCtrl) {
             $scope.defaultWidth = 200;
             $scope.tagText = ''; // current tag being edited
             $scope.placeholder = attrs.placeholder;
@@ -613,6 +614,7 @@ app.directive('tagInput', function () {
                         tagArray.splice(key, 1);
                     }
                 }
+                formCtrl.$setDirty();
                 return $scope.inputTags = tagArray.join(',');
             };
             $scope.$watch('tagText', function (newVal, oldVal) {