diff --git a/test/unit/helper/type_mapping.js b/test/unit/helper/type_mapping.js
index 5432e1e7..f66cef88 100644
--- a/test/unit/helper/type_mapping.js
+++ b/test/unit/helper/type_mapping.js
@@ -1,4 +1,3 @@
-var check = require('check-types');
 var type_mapping = require('../../../helper/type_mapping');
 
 module.exports.tests = {};