3 files changed, 11 insertions, 5 deletions
diff --git a/src/0x.js.ts b/src/0x.js.ts
index a95bc3384..a613d5f48 100644
--- a/src/0x.js.ts
+++ b/src/0x.js.ts
@@ -120,7 +120,7 @@ export class ZeroEx {
     /**
      * Sets default account for sending transactions.
      */
-    public setDefaultAccount(account: string): void {
+    public setTransactionSenderAccount(account: string): void {
         this.web3Wrapper.setDefaultAccount(account);
     }
     /**
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index dc2c95d4e..eace55f4d 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -74,10 +74,10 @@ export class ExchangeWrapper extends ContractWrapper {
         assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer);
 
         const senderAddress = await this.web3Wrapper.getSenderAddressOrThrowAsync();
-        const exchangeInstance = await this.getExchangeContractAsync();
-
         await this.validateFillOrderAsync(signedOrder, fillTakerAmountInBaseUnits, senderAddress);
 
+        const exchangeInstance = await this.getExchangeContractAsync();
+
         const orderAddresses: OrderAddresses = [
             signedOrder.maker,
             signedOrder.taker,
@@ -120,7 +120,8 @@ export class ExchangeWrapper extends ContractWrapper {
         );
         this.throwErrorLogsAsErrors(response.logs);
     }
-    private async validateFillOrderAsync(signedOrder: SignedOrder, fillAmount: BigNumber.BigNumber, senderAddress: string) {
+    private async validateFillOrderAsync(signedOrder: SignedOrder, fillAmount: BigNumber.BigNumber,
+                                         senderAddress: string) {
         if (fillAmount.eq(0)) {
             throw new Error(FillOrderValidationErrs.FILL_AMOUNT_IS_ZERO);
         }
@@ -130,7 +131,8 @@ export class ExchangeWrapper extends ContractWrapper {
         if (signedOrder.expirationUnixTimestampSec.lessThan(Date.now() / 1000)) {
             throw new Error(FillOrderValidationErrs.EXPIRED);
         }
-        const makerBalance = await this.tokenWrapper.getBalanceAsync(signedOrder.makerTokenAddress, signedOrder.maker);
+        const makerBalance = await this.tokenWrapper.getBalanceAsync(signedOrder.makerTokenAddress,
+                                                                        signedOrder.maker);
         const takerBalance = await this.tokenWrapper.getBalanceAsync(signedOrder.takerTokenAddress, senderAddress);
         const makerAllowance = await this.tokenWrapper.getProxyAllowanceAsync(signedOrder.makerTokenAddress,
                                                                               signedOrder.maker);
diff --git a/src/types.ts b/src/types.ts
index ad5d8fb17..f80f98dc4 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -138,3 +138,7 @@ export interface TxOpts {
     from: string;
     gas?: number;
 }
+
+export interface TokenAddressBySymbol {
+    [symbol: string]: string;
+}