diff --git a/angular-translate/angular-translate-tests.ts b/angular-translate/angular-translate-tests.ts
index 1977a0f840..7cb6c89c38 100644
--- a/angular-translate/angular-translate-tests.ts
+++ b/angular-translate/angular-translate-tests.ts
@@ -19,7 +19,7 @@ app.config(($translateProvider: ng.translate.ITranslateProvider) => {
 });
 
 app.controller('Ctrl', ($scope: ng.IScope, $translate: ng.translate.ITranslateService) => {
-    $scope['changeLanguage'] = function (key) {
+    $scope['changeLanguage'] = function (key: any) {
         $translate.uses(key);
     };
 });