3 files changed, 18 insertions, 3 deletions
diff --git a/packages/contracts/src/utils/exchange_wrapper.ts b/packages/contracts/src/utils/exchange_wrapper.ts
index a8ca5183e..6603538b9 100644
--- a/packages/contracts/src/utils/exchange_wrapper.ts
+++ b/packages/contracts/src/utils/exchange_wrapper.ts
@@ -165,7 +165,7 @@ export class ExchangeWrapper {
     public async marketBuyOrdersNoThrowAsync(
         orders: SignedOrder[],
         from: string,
-        opts: { makerAssetFillAmount: BigNumber },
+        opts: { makerAssetFillAmount: BigNumber; gas?: number },
     ): Promise<TransactionReceiptWithDecodedLogs> {
         const params = formatters.createMarketBuyOrders(orders, opts.makerAssetFillAmount);
         const txHash = await this._exchange.marketBuyOrdersNoThrow.sendTransactionAsync(
diff --git a/packages/contracts/src/utils/formatters.ts b/packages/contracts/src/utils/formatters.ts
index 1035f2d7c..b25dec27c 100644
--- a/packages/contracts/src/utils/formatters.ts
+++ b/packages/contracts/src/utils/formatters.ts
@@ -28,8 +28,14 @@ export const formatters = {
             signatures: [],
             takerAssetFillAmount,
         };
-        _.forEach(signedOrders, signedOrder => {
+        _.forEach(signedOrders, (signedOrder, i) => {
             const orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder);
+            if (i !== 0) {
+                orderWithoutExchangeAddress.takerAssetData = `0x${_.repeat(
+                    '0',
+                    signedOrders[0].takerAssetData.length - 2,
+                )}`;
+            }
             marketSellOrders.orders.push(orderWithoutExchangeAddress);
             marketSellOrders.signatures.push(signedOrder.signature);
         });
@@ -41,8 +47,14 @@ export const formatters = {
             signatures: [],
             makerAssetFillAmount,
         };
-        _.forEach(signedOrders, signedOrder => {
+        _.forEach(signedOrders, (signedOrder, i) => {
             const orderWithoutExchangeAddress = orderUtils.getOrderWithoutExchangeAddress(signedOrder);
+            if (i !== 0) {
+                orderWithoutExchangeAddress.makerAssetData = `0x${_.repeat(
+                    '0',
+                    signedOrders[0].makerAssetData.length - 2,
+                )}`;
+            }
             marketBuyOrders.orders.push(orderWithoutExchangeAddress);
             marketBuyOrders.signatures.push(signedOrder.signature);
         });
diff --git a/packages/contracts/src/utils/order_utils.ts b/packages/contracts/src/utils/order_utils.ts
index 2a8791e4c..a9f994d80 100644
--- a/packages/contracts/src/utils/order_utils.ts
+++ b/packages/contracts/src/utils/order_utils.ts
@@ -1,6 +1,7 @@
 import { OrderWithoutExchangeAddress, SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 
+import { constants } from './constants';
 import { CancelOrder, MatchOrder } from './types';
 
 export const orderUtils = {
@@ -43,6 +44,8 @@ export const orderUtils = {
             leftSignature: signedOrderLeft.signature,
             rightSignature: signedOrderRight.signature,
         };
+        fill.right.makerAssetData = constants.NULL_BYTES;
+        fill.right.takerAssetData = constants.NULL_BYTES;
         return fill;
     },
 };