diff --git a/gulp-concat/gulp-concat-tests.ts b/gulp-concat/gulp-concat-tests.ts
index 68f6e529d..f8ef7373d 100644
--- a/gulp-concat/gulp-concat-tests.ts
+++ b/gulp-concat/gulp-concat-tests.ts
@@ -2,7 +2,7 @@
 /// <reference path="../gulp/gulp.d.ts" />
 
 import gulp = require("gulp");
-import concat = require("gulp-concat");
+import * as concat from "gulp-concat";
 
 gulp.task("concat:simple", () => {
     gulp.src(["file*.txt"])
diff --git a/gulp-concat/gulp-concat.d.ts b/gulp-concat/gulp-concat.d.ts
index cad21c303..b62212156 100644
--- a/gulp-concat/gulp-concat.d.ts
+++ b/gulp-concat/gulp-concat.d.ts
@@ -35,8 +35,11 @@ declare module "gulp-concat" {
         contents?: NodeJS.ReadableStream | Buffer;
     }
 
-    function concat(filename: string, options?: IOptions): NodeJS.ReadWriteStream;
-    function concat(options: IVinylOptions): NodeJS.ReadWriteStream;
+    interface IConcat {
+        (filename: string, options?: IOptions): NodeJS.ReadWriteStream;
+        (options: IVinylOptions): NodeJS.ReadWriteStream;
+    }
 
-    export = concat;
+    var _tmp: IConcat;
+    export = _tmp;
 }