diff --git a/erp/expense/cost.go b/erp/expense/cost.go
index 0a8479d..d268e9b 100644
--- a/erp/expense/cost.go
+++ b/erp/expense/cost.go
@@ -30,6 +30,7 @@ type CostItem struct {
 	TypeName       string          `json:"typeName"`
 	Value          string          `json:"value"`
 	Amount         decimal.Decimal `json:"amount"`
+	PaymentAmount  decimal.Decimal `json:"paymentAmount"`
 	DepartmentId   int64           `json:"departmentId"`
 	InvoiceSerial  string          `json:"invoiceSerial"`
 	TravelAt       *time.Time      `json:"travelAt"`