2 files changed, 10 insertions, 10 deletions

diff --git a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
index fe0c5bc00..b4bf24846 100644
--- a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
@@ -807,7 +807,7 @@ export class ExchangeWrapper extends ContractWrapper {
         if (!_.isUndefined(errLog)) {
             const logArgs = errLog.args;
             const errCode = logArgs.errorId.toNumber();
-            const errMessage = this._exchangeContractErrCodesToMsg[errCode];
+            const errMessage: ExchangeContractErrs = this._exchangeContractErrCodesToMsg[errCode];
             throw new Error(errMessage);
         }
     }
diff --git a/packages/0x.js/test/subscription_test.ts b/packages/0x.js/test/subscription_test.ts
index 985fdc1d6..f69ae0b13 100644
--- a/packages/0x.js/test/subscription_test.ts
+++ b/packages/0x.js/test/subscription_test.ts
@@ -13,7 +13,7 @@ import {
     Token,
     ApprovalContractEventArgs,
     TokenEvents,
-    LogEvent,
+    DecodedLogEvent,
 } from '../src';
 import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
 import {TokenUtils} from './utils/token_utils';
@@ -64,15 +64,15 @@ describe('SubscriptionTest', () => {
         });
         it('Should receive the Error when an error occurs', (done: DoneCallback) => {
             (async () => {
-                const callback = (err: Error, logEvent: LogEvent<ApprovalContractEventArgs>) => {
+                const callback = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
                     expect(err).to.not.be.null();
                     expect(logEvent).to.be.undefined();
                     done();
                 };
                 stubs = [
                   Sinon.stub((zeroEx as any)._web3Wrapper, 'getBlockAsync')
-                   .throws("JSON RPC error")
-                ]
+                   .throws('JSON RPC error'),
+                ];
                 zeroEx.token.subscribe(
                     tokenAddress, TokenEvents.Approval, indexFilterValues, callback);
                 await zeroEx.token.setAllowanceAsync(tokenAddress, coinbase, addressWithoutFunds, allowanceAmount);
@@ -80,16 +80,16 @@ describe('SubscriptionTest', () => {
          });
         it('Should allow unsubscribeAll to be called successfully after an error', (done: DoneCallback) => {
             (async () => {
-                const callback = (err: Error, logEvent: LogEvent<ApprovalContractEventArgs>) => { };
+                const callback = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => _.noop;
                 zeroEx.token.subscribe(
                     tokenAddress, TokenEvents.Approval, indexFilterValues, callback);
                 stubs = [
                   Sinon.stub((zeroEx as any)._web3Wrapper, 'getBlockAsync')
-                   .throws("JSON RPC error")
-                ]
+                   .throws('JSON RPC error'),
+                ];
                 zeroEx.token.unsubscribeAll();
                 done();
             })().catch(done);
          });
-    })
-  })
\ No newline at end of file
+    });
+});