diff --git a/addons/account_anglo_saxon/invoice.py b/addons/account_anglo_saxon/invoice.py
index c37a93b4be4..e8a650e6a50 100644
--- a/addons/account_anglo_saxon/invoice.py
+++ b/addons/account_anglo_saxon/invoice.py
@@ -136,11 +136,11 @@ class account_invoice_line(osv.osv):
                         res += diff_res
         return res   
     
-    def product_id_change(self, cr, uid, ids, product, uom, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, address_invoice_id=False, currency_id=False, context=None):
+    def product_id_change(self, cr, uid, ids, product, uom, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, address_invoice_id=False, currency_id=False, context=None, company_id=None):
         if not product:
-            return super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, fposition_id, price_unit, address_invoice_id, currency_id, context)
+            return super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, fposition_id, price_unit, address_invoice_id, currency_id, context, company_id)
         else:
-            res = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, fposition_id, price_unit, address_invoice_id, currency_id, context)
+            res = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, fposition_id, price_unit, address_invoice_id, currency_id, context, company_id)
 
         if type in ('in_invoice','in_refund'):
             product_obj = self.pool.get('product.product').browse(cr, uid, product, context=context)