diff --git a/platformapi/mtwmapi/retail.go b/platformapi/mtwmapi/retail.go
index 722f5f22..1955f481 100644
--- a/platformapi/mtwmapi/retail.go
+++ b/platformapi/mtwmapi/retail.go
@@ -47,7 +47,7 @@ type BareStoreSkuInfo struct {
 
 type BareStoreFoodInfo struct {
 	AppFoodCode string              `json:"app_food_code"`
-	Skus        []*BareStoreSkuInfo `json:"skus"`
+	Skus        []*BareStoreSkuInfo `json:"skus,omitempty"`
 }
 
 type AvailableTimesInfo struct {