diff --git a/modules/angular2/src/alt_router/router_providers.ts b/modules/angular2/src/alt_router/router_providers.ts
index c8e8e45dc0..1f69ecb315 100644
--- a/modules/angular2/src/alt_router/router_providers.ts
+++ b/modules/angular2/src/alt_router/router_providers.ts
@@ -6,5 +6,5 @@ import {PlatformLocation} from 'angular2/platform/common';
 
 export const ROUTER_PROVIDERS: any[] = /*@ts2dart_const*/[
   ROUTER_PROVIDERS_COMMON,
-  /*@ts2dart_Provider*/{provide: PlatformLocation, useClass: BrowserPlatformLocation},
+  /*@ts2dart_Provider*/ {provide: PlatformLocation, useClass: BrowserPlatformLocation},
 ];
diff --git a/modules/angular2/src/core/change_detection/differs/default_keyvalue_differ.ts b/modules/angular2/src/core/change_detection/differs/default_keyvalue_differ.ts
index 255c4ed987..ded64207c5 100644
--- a/modules/angular2/src/core/change_detection/differs/default_keyvalue_differ.ts
+++ b/modules/angular2/src/core/change_detection/differs/default_keyvalue_differ.ts
@@ -4,8 +4,8 @@ import {BaseException} from 'angular2/src/facade/exceptions';
 import {ChangeDetectorRef} from '../change_detector_ref';
 import {KeyValueDiffer, KeyValueDifferFactory} from '../differs/keyvalue_differs';
 
+/* @ts2dart_const */
 export class DefaultKeyValueDifferFactory implements KeyValueDifferFactory {
-  /* @ts2dart_const */
   constructor() {}
   supports(obj: any): boolean { return obj instanceof Map || isJsObject(obj); }
 
diff --git a/modules/angular2/src/core/linker/component_factory.ts b/modules/angular2/src/core/linker/component_factory.ts
index 20ebe91a01..9f0be26d06 100644
--- a/modules/angular2/src/core/linker/component_factory.ts
+++ b/modules/angular2/src/core/linker/component_factory.ts
@@ -71,8 +71,8 @@ export class ComponentRef_ extends ComponentRef {
 
 const EMPTY_CONTEXT = /*@ts2dart_const*/new Object();
 
+/*@ts2dart_const*/
 export class ComponentFactory {
-  /* @ts2dart_const */
   constructor(public selector: string, private _viewFactory: Function,
               private _componentType: Type) {}