1 files changed, 5 insertions, 0 deletions
diff --git a/packages/forwarder-helper/src/utils/order_utils.ts b/packages/forwarder-helper/src/utils/order_utils.ts
index d14c6a6d7..482006bf1 100644
--- a/packages/forwarder-helper/src/utils/order_utils.ts
+++ b/packages/forwarder-helper/src/utils/order_utils.ts
@@ -1,6 +1,8 @@
 import { SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 
+import { constants } from '../constants';
+
 export const orderUtils = {
     isOrderExpired(order: SignedOrder): boolean {
         const millisecondsInSecond = 1000;
@@ -13,4 +15,7 @@ export const orderUtils = {
             : remainingTakerAssetAmount.times(order.makerAssetAmount).dividedToIntegerBy(order.takerAssetAmount);
         return result;
     },
+    isOpenOrder(order: SignedOrder): boolean {
+        return order.takerAddress === constants.NULL_ADDRESS;
+    },
 };