diff --git a/addons/point_of_sale/point_of_sale.py b/addons/point_of_sale/point_of_sale.py
index c75a1aee4d5..0476fb03b31 100644
--- a/addons/point_of_sale/point_of_sale.py
+++ b/addons/point_of_sale/point_of_sale.py
@@ -647,7 +647,6 @@ class pos_order(osv.osv):
                                                                line.qty, partner_id = order.partner_id.id, fposition_id=order.partner_id.property_account_position.id)['value'])
                 inv_line['price_unit'] = line.price_unit
                 inv_line['discount'] = line.discount
-                inv_line['account_id'] = acc
                 inv_line['name'] = inv_name
                 inv_line['invoice_line_tax_id'] = ('invoice_line_tax_id' in inv_line)\
                     and [(6, 0, inv_line['invoice_line_tax_id'])] or []