1 files changed, 1 insertions, 1 deletions
diff --git a/src/0x.ts b/src/0x.ts
index 615702957..a95257db6 100644
--- a/src/0x.ts
+++ b/src/0x.ts
@@ -182,7 +182,7 @@ export class ZeroEx {
      */
     public getOrderHashHex(order: Order|SignedOrder): string {
         assert.doesConformToSchema('order', order, orderSchema);
-        const orderHashHex = utils.getOrderHashHex(order, order.exchangeContractAddress);
+        const orderHashHex = utils.getOrderHashHex(order);
         return orderHashHex;
     }
     /**