diff --git a/awx/ui/client/src/notifications/add/add.controller.js b/awx/ui/client/src/notifications/add/add.controller.js
index 4716eb8a0c..e42b2dcf1f 100644
--- a/awx/ui/client/src/notifications/add/add.controller.js
+++ b/awx/ui/client/src/notifications/add/add.controller.js
@@ -164,6 +164,13 @@ export default ['Rest', 'Wait', 'NotificationsFormObject',
                 });
             }
         });
+        $scope.$watch('notification_type', (value) => {
+            if (value) {
+                $scope.$broadcast('reset-code-mirror', {
+                    customize_messages: $scope.customize_messages,
+                });
+            }
+        });
 
         $scope.emailOptionsChange = function () {
             if ($scope.email_options === 'use_ssl') {
diff --git a/awx/ui/client/src/notifications/edit/edit.controller.js b/awx/ui/client/src/notifications/edit/edit.controller.js
index 49c2c6a953..30c449b63d 100644
--- a/awx/ui/client/src/notifications/edit/edit.controller.js
+++ b/awx/ui/client/src/notifications/edit/edit.controller.js
@@ -258,6 +258,13 @@ export default ['Rest', 'Wait',
                 });
             }
         });
+        $scope.$watch('notification_type', (value) => {
+            if (value) {
+                $scope.$broadcast('reset-code-mirror', {
+                    customize_messages: $scope.customize_messages,
+                });
+            }
+        });
 
         $scope.emailOptionsChange = function () {
             if ($scope.email_options === 'use_ssl') {