diff --git a/openerp/addons/base/res/res_currency.py b/openerp/addons/base/res/res_currency.py
index e5a354b2106..1f719522d9d 100644
--- a/openerp/addons/base/res/res_currency.py
+++ b/openerp/addons/base/res/res_currency.py
@@ -227,7 +227,7 @@ class CurrencyRate(models.Model):
     _description = "Currency Rate"
     _order = "name desc"
 
-    name = fields.Datetime(string='Date', required=True, index=True, default=fields.Date.today() + ' 00:00:00')
+    name = fields.Datetime(string='Date', required=True, index=True, default=lambda self:fields.Date.today() + ' 00:00:00')
     rate = fields.Float(digits=(12, 6), help='The rate of the currency to the currency of rate 1')
     currency_id = fields.Many2one('res.currency', string='Currency', readonly=True)
     company_id = fields.Many2one('res.company', string='Company')