diff --git a/types/ember/v2/index.d.ts b/types/ember/v2/index.d.ts
index cfc95ed691..b414a6f79b 100755
--- a/types/ember/v2/index.d.ts
+++ b/types/ember/v2/index.d.ts
@@ -2414,6 +2414,7 @@ declare module 'ember' {
             function print(ast: any): void;
             const logger: typeof Ember.Logger;
             function log(level: string, str: string): void;
+            function registerHelper(name: string, helper: any): void;
         }
         namespace String {
             function camelize(str: string): string;
diff --git a/types/ember/v2/test/ember-tests.ts b/types/ember/v2/test/ember-tests.ts
index c049512eb0..892c9ed9a8 100755
--- a/types/ember/v2/test/ember-tests.ts
+++ b/types/ember/v2/test/ember-tests.ts
@@ -92,10 +92,10 @@ App.userController = Ember.Object.create({
     }),
 });
 
-Handlebars.registerHelper(
+Ember.Handlebars.registerHelper(
     'highlight',
     (property: string, options: any) =>
-        new Handlebars.SafeString('<span class="highlight">' + 'some value' + '</span>')
+        new Ember.Handlebars.SafeString('<span class="highlight">' + 'some value' + '</span>')
 );
 
 const coolView = App.CoolView.create();