diff --git a/merge2/merge2-tests.ts b/merge2/merge2-tests.ts
index bba0dd0a34..b1c4b4e546 100644
--- a/merge2/merge2-tests.ts
+++ b/merge2/merge2-tests.ts
@@ -2,7 +2,7 @@
 /// <reference path="../gulp/gulp.d.ts" />
 
 import gulp = require('gulp');
-import merge2 = require('merge2');
+import * as merge2 from "merge2"; 
 
 gulp.task('app-js', () =>
   merge2(
diff --git a/merge2/merge2.d.ts b/merge2/merge2.d.ts
index ebf1df758f..095af7a2c4 100644
--- a/merge2/merge2.d.ts
+++ b/merge2/merge2.d.ts
@@ -12,10 +12,13 @@ declare module 'merge2' {
     }
 
     interface IMerge2Stream extends NodeJS.ReadWriteStream {
-      add(...args: Array<NodeJS.ReadWriteStream | IMerge2Stream | Array<NodeJS.ReadWriteStream | IMerge2Stream | IOptions>>): IMerge2Stream;
+        add(...args: Array<NodeJS.ReadWriteStream | IMerge2Stream | Array<NodeJS.ReadWriteStream | IMerge2Stream | IOptions>>): IMerge2Stream;
     }
 
-    function merge2(...args: Array<NodeJS.ReadWriteStream | IMerge2Stream | Array<NodeJS.ReadWriteStream | IMerge2Stream> | IOptions>): IMerge2Stream;
+    interface IMerge2 {
+        (...args: Array<NodeJS.ReadWriteStream | IMerge2Stream | Array<NodeJS.ReadWriteStream | IMerge2Stream> | IOptions>): IMerge2Stream;
+    }
 
-    export = merge2;
+    var _tmp: IMerge2;
+    export = _tmp;
 }