diff --git a/src/ts/contract_wrappers/contract_wrapper.ts b/src/ts/contract_wrappers/contract_wrapper.ts
index 72bfffe95b..aeb52b0e12 100644
--- a/src/ts/contract_wrappers/contract_wrapper.ts
+++ b/src/ts/contract_wrappers/contract_wrapper.ts
@@ -1,4 +1,5 @@
 import * as _ from 'lodash';
+import contract = require('truffle-contract');
 import {Web3Wrapper} from '../web3_wrapper';
 import {ZeroExError} from '../types';
 import {utils} from '../utils/utils';