diff --git a/controller/order.go b/controller/order.go
index 829a0ca..0cd36c9 100644
--- a/controller/order.go
+++ b/controller/order.go
@@ -398,7 +398,9 @@ func RentCardOrderCreate(c *gin.Context) {
 
 	//fmt.Println("PayPrice:", order.PayPrice)
 	if req.Price == 0 {
-		//tx := model.TransactionBegin()
+		if tx == nil {
+			tx = model.TransactionBegin()
+		}
 		order.PayStatus = model.PayStatusPaid
 		fmt.Println("orderId:", order.PayStatus)
 		err = order.OrderCreate(tx)