1 files changed, 1 insertions, 1 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index 459e24608..35ba7770c 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -121,7 +121,7 @@ export class ExchangeWrapper extends ContractWrapper {
                                    signedOrderSchema);
         assert.isBigNumber('fillTakerAmount', fillTakerAmount);
         assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer);
-        await assert.isSenderAccountHexAsync(this.web3Wrapper, senderAccount);
+        await assert.isSenderAccountHexAsync('senderAccount', senderAccount, this.web3Wrapper);
 
         const exchangeInstance = await this.getExchangeContractAsync();
         await this.validateFillOrderAndThrowIfInvalidAsync(signedOrder, fillTakerAmount, senderAccount);