diff --git a/erp/accounting.go b/erp/accounting.go
index c1c0ffa..79426af 100644
--- a/erp/accounting.go
+++ b/erp/accounting.go
@@ -39,6 +39,7 @@ type AccountingItem struct {
 	Id               int64           `json:"id"`
 	AccountingSerial string          `json:"accountingSerial"`
 	InvoiceDate      *time.Time      `json:"invoiceDate"`
+	InvoiceSerial    string          `json:"invoiceSerial"`
 	CreatedAt        *time.Time      `json:"createdAt"`
 	CustomShortName  string          `json:"customShortName"`
 	CustomName       string          `json:"customName"`
@@ -116,6 +117,7 @@ type ReplyAccountingInfo struct {
 	CustomName       string          `json:"customName"`
 	InvoiceDate      *time.Time      `json:"invoiceDate"`
 	InvoiceDateEnd   *time.Time      `json:"invoiceDateEnd"`
+	InvoiceSerial    string          `json:"invoiceSerial"`
 	AccountingSerial string          `json:"accountingSerial"`
 	Remark           string          `json:"remark"`
 	WorkflowId       int64           `json:"workflowId"`