diff --git a/erp/request/cost.go b/erp/request/cost.go
index 7556c32..277b766 100644
--- a/erp/request/cost.go
+++ b/erp/request/cost.go
@@ -54,15 +54,18 @@ type ArgsCostAdd struct {
 	Remarks       string          // 备注
 	InvoiceSerial string          // 发票号
 }
+type ReplyCostAdd struct {
+	CostId int64 `json:"costId"`
+}
 
 // Add @TITLE 添加
-func (c *cost) Add(ctx context.Context, args ArgsCostAdd) (err error) {
+func (c *cost) Add(ctx context.Context, args ArgsCostAdd) (reply ReplyCostAdd, err error) {
 	xClient, err := client.GetClient(c)
 	if err != nil {
 		return
 	}
-	reply := 0
-	return xClient.Call(ctx, "Add", args, &reply)
+	err = xClient.Call(ctx, "Add", args, &reply)
+	return
 }
 
 type ArgsCostEdit struct {