diff --git a/openerp/addons/base/res/res_currency.py b/openerp/addons/base/res/res_currency.py
index 94a5f538b25..9b638c706a4 100644
--- a/openerp/addons/base/res/res_currency.py
+++ b/openerp/addons/base/res/res_currency.py
@@ -49,6 +49,7 @@ class res_currency(osv.osv):
         currency_rate_type = context.get('currency_rate_type_id') or None
         # ... and use 'is NULL' instead of '= some-id'.
         operator = '=' if currency_rate_type else 'is'
+        currency_name = self.browse(cr, uid, ids, context=context)[0].name
         for id in ids:
             cr.execute("SELECT currency_id, rate FROM res_currency_rate WHERE currency_id = %s AND name <= %s AND currency_rate_type_id " + operator +" %s ORDER BY name desc LIMIT 1" ,(id, date, currency_rate_type))
             if cr.rowcount:
@@ -57,7 +58,7 @@ class res_currency(osv.osv):
             elif not raise_on_no_rate:
                 res[id] = 0
             else:
-                raise osv.except_osv(_('Error!'),_("No currency rate associated for currency %d for the given period" % (id)))
+                raise osv.except_osv(_('Error!'),_("No currency rate associated for currency %d for the given period" % (currency_name)))
         return res
 
     _name = "res.currency"