diff --git a/dao/om/implments/SerialOrder.dao.impl.go b/dao/om/implments/SerialOrder.dao.impl.go
index dacc1c9..3d78639 100644
--- a/dao/om/implments/SerialOrder.dao.impl.go
+++ b/dao/om/implments/SerialOrder.dao.impl.go
@@ -334,7 +334,7 @@ func (impl *SerialOrderDAOImplement) SelectByWorkOrderId(workOrderId string) (se
 		meta.SerialOrder_PlantNr.ColumnName,
 		meta.SerialOrder_WorkOrderId.ColumnName,
 		meta.SerialOrderStatus_Status.ColumnName)
-	err = session.Join("LEFT", meta.SerialOrderStatus.TableName, condition).Where(where, impl.plantNr, workOrderId, common.WO_STATUS_LOCKED).Asc(meta.SerialOrder_PlanStartTime.ColumnName).Find(&data)
+	err = session.Join("LEFT", meta.SerialOrderStatus.TableName, condition).Where(where, impl.plantNr, workOrderId, common.WO_STATUS_LOCKED).Asc(meta.SerialOrder_SerialOrderId.ColumnName).Find(&data)
 	if err != nil {
 		return nil, err
 	}