diff --git a/service/maintenance_fee.go b/service/maintenance_fee.go
index b6eaf54..9fc3eb7 100644
--- a/service/maintenance_fee.go
+++ b/service/maintenance_fee.go
@@ -59,7 +59,7 @@ func (_MaintenanceFeeService) CreateMaintenanceFeeRecord(fee model.MaintenanceFe
 
 	fee.Id = uuid.New().String()
 	fee.Enabled = true
-	_, err := global.DB.NewInsert().Model(fee).Exec(ctx)
+	_, err := global.DB.NewInsert().Model(&fee).Exec(ctx)
 	if err != nil {
 		return err
 	}
@@ -71,7 +71,7 @@ func (_MaintenanceFeeService) ModifyMaintenanceFee(fee model.MaintenanceFee) err
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
 
-	res, err := global.DB.NewUpdate().Model(fee).
+	res, err := global.DB.NewUpdate().Model(&fee).
 		WherePK().
 		Column("fee", "memo").
 		Exec(ctx)