diff --git a/addons/sale/wizard/sale_make_invoice_advance.py b/addons/sale/wizard/sale_make_invoice_advance.py
index 9c3160cb46a..c4798cc44d4 100644
--- a/addons/sale/wizard/sale_make_invoice_advance.py
+++ b/addons/sale/wizard/sale_make_invoice_advance.py
@@ -58,6 +58,9 @@ class sale_advance_payment_inv(osv.osv_memory):
         'product_id': _get_advance_product,
     }
 
+    def _translate_advance(self, cr, uid, percentage=False, context=None):
+        return _("Advance of %s %%") if percentage else _("Advance of %s %s")
+
     def onchange_method(self, cr, uid, ids, advance_payment_method, product_id, context=None):
         if advance_payment_method == 'percentage':
             return {'value': {'amount':0, 'product_id':False }}
@@ -104,16 +107,17 @@ class sale_advance_payment_inv(osv.osv_memory):
             if wizard.advance_payment_method == 'percentage':
                 inv_amount = sale.amount_total * wizard.amount / 100
                 if not res.get('name'):
-                    res['name'] = _("Advance of %s %%") % (wizard.amount)
+                    res['name'] = self._translate_advance(cr, uid, percentage=True, context=dict(context, lang=sale.partner_id.lang)) % (wizard.amount)
             else:
                 inv_amount = wizard.amount
                 if not res.get('name'):
                     #TODO: should find a way to call formatLang() from rml_parse
                     symbol = sale.pricelist_id.currency_id.symbol
                     if sale.pricelist_id.currency_id.position == 'after':
-                        res['name'] = _("Advance of %s %s") % (inv_amount, symbol)
+                        symbol_order = (inv_amount, symbol)
                     else:
-                        res['name'] = _("Advance of %s %s") % (symbol, inv_amount)
+                        symbol_order = (symbol, inv_amount)
+                    res['name'] = self._translate_advance(cr, uid, context=dict(context, lang=sale.partner_id.lang)) % symbol_order
 
             # determine taxes
             if res.get('invoice_line_tax_id'):
@@ -159,7 +163,6 @@ class sale_advance_payment_inv(osv.osv_memory):
         sale_obj.write(cr, uid, sale_id, {'invoice_ids': [(4, inv_id)]}, context=context)
         return inv_id
 
-
     def create_invoices(self, cr, uid, ids, context=None):
         """ create invoices for the active sales orders """
         sale_obj = self.pool.get('sale.order')