diff --git a/platformapi/mtwmapi/order.go b/platformapi/mtwmapi/order.go
index 087aa52e..a9c5ffad 100644
--- a/platformapi/mtwmapi/order.go
+++ b/platformapi/mtwmapi/order.go
@@ -135,7 +135,7 @@ type FoodInfo struct {
 	BoxNum       float64 `json:"box_num"`
 	BoxPrice     float64 `json:"box_price"`
 	CartID       int     `json:"cart_id"`
-	FoodDiscount int     `json:"food_discount"`
+	FoodDiscount float64 `json:"food_discount"`
 	FoodName     string  `json:"food_name"`
 	FoodProperty string  `json:"food_property"`
 	Price        float64 `json:"price"`