diff --git a/test/token/ERC721/ERC721BasicToken.behaviour.js b/test/token/ERC721/ERC721BasicToken.behaviour.js
index 35cc997f273..6d2f3c05f1b 100644
--- a/test/token/ERC721/ERC721BasicToken.behaviour.js
+++ b/test/token/ERC721/ERC721BasicToken.behaviour.js
@@ -3,7 +3,6 @@ import assertRevert from '../../helpers/assertRevert';
 import decodeLogs from '../../helpers/decodeLogs';
 import expectEvent from '../../helpers/expectEvent';
 import _ from 'lodash';
-// import { promisify } from 'es6-promisify';
 
 const ERC721Receiver = artifacts.require('ERC721ReceiverMock.sol');
 const BigNumber = web3.BigNumber;