diff --git a/angular-file-saver/index.d.ts b/angular-file-saver/index.d.ts
index 7e1fb90b16..2fb846eef4 100644
--- a/angular-file-saver/index.d.ts
+++ b/angular-file-saver/index.d.ts
@@ -3,13 +3,12 @@
 // Definitions by: Donald Nairn <https://github.com/deenairn/>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-/// <reference types="angular" />
-
-declare namespace angular {
+import * as angular from 'angular';
+declare module 'angular' {
     /**
      * A core Angular factory proving FileSaver functionality.
      */
-    interface FileSaver {
+    export interface FileSaver {
         /**
          * Immediately starts saving a file
          * @param data: a Blob instance;
@@ -18,4 +17,4 @@ declare namespace angular {
          */
         saveAs(blob: Blob, fileName: string, disableBOM?: boolean): void;
     }
-}
\ No newline at end of file
+}