diff --git a/erp/purchase.go b/erp/purchase.go
index 8fadadd..54f5df6 100644
--- a/erp/purchase.go
+++ b/erp/purchase.go
@@ -99,6 +99,7 @@ func (p *purchase) Add(ctx context.Context, args ArgsPurchaseAdd) (err error) {
 
 type ReplyPurchaseInfo struct {
 	PurchaseId      int64            `json:"purchaseId"`
+	SaleId          int64            `json:"saleId"`
 	FactoryId       int64            `json:"factoryId"`
 	FactoryName     string           `json:"factoryName"`
 	FactoryAddress  string           `json:"factoryAddress"`