diff --git a/addons/account/partner.py b/addons/account/partner.py
index f60b37fe862..6684222a46e 100644
--- a/addons/account/partner.py
+++ b/addons/account/partner.py
@@ -109,6 +109,7 @@ class account_fiscal_position(osv.osv):
     def get_fiscal_position(self, cr, uid, company_id, partner_id, delivery_id=None, context=None):
         if not partner_id:
             return False
+        context = dict(context or {}, company_id=company_id, force_company=company_id)
         # This can be easily overriden to apply more complex fiscal rules
         part_obj = self.pool['res.partner']
         partner = part_obj.browse(cr, uid, partner_id, context=context)