diff --git a/stock_usability/stock.py b/stock_usability/stock.py
index 1fdf005..c802f40 100644
--- a/stock_usability/stock.py
+++ b/stock_usability/stock.py
@@ -84,7 +84,7 @@ class StockMove(models.Model):
             if line.partner_id:
                 name = line.partner_id.name + ' ' + name
             if line.date_expected:
-                name = name + ' ' + line.date_expected
+                name = '%s %s' % (name, line.date_expected)
             res.append((line.id, name))
         return res
 
@@ -105,7 +105,6 @@ class StockMove(models.Model):
 #            ops.unlink()
 
 
-
 class ProcurementGroup(models.Model):
     _inherit = 'procurement.group'