diff --git a/ts/index.ts b/ts/index.ts
index eb7dfcc..38c2490 100644
--- a/ts/index.ts
+++ b/ts/index.ts
@@ -1,5 +1,5 @@
 import 'typings-global'
-import * as tap from 'tap'
+let tap = require('tap')
 import { expect } from 'smartchai'
 
 export {