diff --git a/public/app/features/alerting/notification_edit_ctrl.ts b/public/app/features/alerting/notification_edit_ctrl.ts
index ed05264cdb3..39c9d8ca468 100644
--- a/public/app/features/alerting/notification_edit_ctrl.ts
+++ b/public/app/features/alerting/notification_edit_ctrl.ts
@@ -7,7 +7,7 @@ import {appEvents, coreModule} from 'app/core/core';
 
 export class AlertNotificationEditCtrl {
   theForm: any;
-  testSeverity: string = "critical";
+  testSeverity = "critical";
   notifiers: any;
   notifierTemplateId: string;
 
diff --git a/public/app/features/org/profile_ctrl.ts b/public/app/features/org/profile_ctrl.ts
index a97799f1e85..c0e8b5ae246 100644
--- a/public/app/features/org/profile_ctrl.ts
+++ b/public/app/features/org/profile_ctrl.ts
@@ -9,7 +9,7 @@ export class ProfileCtrl {
   old_theme: any;
   orgs: any = [];
   userForm: any;
-  showOrgsList: boolean = false;
+  showOrgsList = false;
 
   /** @ngInject **/
   constructor(private backendSrv, private contextSrv, private $location) {
diff --git a/public/app/features/playlist/playlist_edit_ctrl.ts b/public/app/features/playlist/playlist_edit_ctrl.ts
index 702d7c8fa84..d291b7c97d5 100644
--- a/public/app/features/playlist/playlist_edit_ctrl.ts
+++ b/public/app/features/playlist/playlist_edit_ctrl.ts
@@ -8,8 +8,8 @@ import config from 'app/core/config';
 export class PlaylistEditCtrl {
   filteredDashboards: any = [];
   filteredTags: any = [];
-  searchQuery: string = '';
-  loading: boolean = false;
+  searchQuery = '';
+  loading = false;
   playlist: any = {
     interval: '5m',
   };
diff --git a/public/app/plugins/datasource/cloudwatch/config_ctrl.ts b/public/app/plugins/datasource/cloudwatch/config_ctrl.ts
index b04533bd20c..ee76b0d15fa 100644
--- a/public/app/plugins/datasource/cloudwatch/config_ctrl.ts
+++ b/public/app/plugins/datasource/cloudwatch/config_ctrl.ts
@@ -7,8 +7,8 @@ export class CloudWatchConfigCtrl {
   static templateUrl = 'partials/config.html';
   current: any;
 
-  accessKeyExist: boolean = false;
-  secretKeyExist: boolean = false;
+  accessKeyExist = false;
+  secretKeyExist = false;
 
   /** @ngInject */
   constructor($scope) {