diff --git a/erp/constant.go b/erp/constant.go
index 74afabd..6a5adf8 100644
--- a/erp/constant.go
+++ b/erp/constant.go
@@ -65,6 +65,7 @@ const (
 	ExportTypeShipment            = "shipment"            // 订舱导出
 	ExportTypeShipmentModify      = "shipmentModify"      // 订舱修改单导出
 	ExportTypeShipmentInfo        = "shipmentInfo"        // 出运明细导出
+	ExportTypeShipmentMixed       = "shipmentMixed"       // 订舱单混装导出
 	ExportTypeSerial              = "serial"              // 商检导出
 	ExportTypeCustoms             = "customs"             // 报关导出
 	ExportTypeExchangeSettlement  = "exchangeSettlement"  // 结汇导出