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-rw-r--r--packages/contracts/test/ether_token.ts1
1 files changed, 1 insertions, 0 deletions
diff --git a/packages/contracts/test/ether_token.ts b/packages/contracts/test/ether_token.ts
index 4eb901dc7..bad7b5961 100644
--- a/packages/contracts/test/ether_token.ts
+++ b/packages/contracts/test/ether_token.ts
@@ -3,6 +3,7 @@ import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-u
import { BigNumber, promisify } from '@0xproject/utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import * as chai from 'chai';
+import 'make-promises-safe';
import { WETH9Contract } from '../src/contract_wrappers/generated/weth9';
import { artifacts } from '../util/artifacts';