diff --git a/addons/website_sale/models/sale_order.py b/addons/website_sale/models/sale_order.py
index 6b329a143d44a0ef27922ffb826ef14b6bca4fab..5e62c297d7f0110dfcd65fdd38f8c21bc4443d78 100644
--- a/addons/website_sale/models/sale_order.py
+++ b/addons/website_sale/models/sale_order.py
@@ -158,7 +158,6 @@ class website(orm.Model):
                     pricelist_id = pricelist_ids[0]
                     request.session['sale_order_code_pricelist_id'] = pricelist_id
                     update_pricelist = True
-                request.session['sale_order_code_pricelist_id'] = False
 
             pricelist_id = request.session.get('sale_order_code_pricelist_id') or partner.property_product_pricelist.id