diff --git a/stock_reserve_sale/wizard/sale_stock_reserve.py b/stock_reserve_sale/wizard/sale_stock_reserve.py
index bd51daad4..af8130f1b 100644
--- a/stock_reserve_sale/wizard/sale_stock_reserve.py
+++ b/stock_reserve_sale/wizard/sale_stock_reserve.py
@@ -59,7 +59,7 @@ class SaleStockReserve(models.TransientModel):
                 'product_uom': line.product_uom.id,
                 'product_uom_qty': line.product_uom_qty,
                 'date_validity': self.date_validity,
-                'name': "{} ({})".format(line.order_id.name, line.name),
+                'name': "%s (%s)" % (line.order_id.name, line.name),
                 'location_id': self.location_id.id,
                 'location_dest_id': self.location_dest_id.id,
                 'note': self.note,