1 files changed, 1 insertions, 1 deletions
diff --git a/packages/contracts/src/utils/order_factory.ts b/packages/contracts/src/utils/order_factory.ts
index 6e4c9a883..009dbc396 100644
--- a/packages/contracts/src/utils/order_factory.ts
+++ b/packages/contracts/src/utils/order_factory.ts
@@ -26,7 +26,7 @@ export class OrderFactory {
             ...this._defaultOrderParams,
             ...customOrderParams,
         } as any) as Order;
-        const orderHashBuff = orderHashUtils.getOrderHashBuff(order);
+        const orderHashBuff = orderHashUtils.getOrderHashBuffer(order);
         const signature = signingUtils.signMessage(orderHashBuff, this._privateKey, signatureType);
         const signedOrder = {
             ...order,