diff --git a/addons/website_sale/controllers/main.py b/addons/website_sale/controllers/main.py
index 3411fb3e3b9..2888b7c6e86 100644
--- a/addons/website_sale/controllers/main.py
+++ b/addons/website_sale/controllers/main.py
@@ -970,6 +970,7 @@ class WebsiteSale(ProductConfiguratorController):
             return request.redirect('/shop')
 
         if order and not order.amount_total and not tx:
+            order.with_context(send_email=True).action_confirm()
             return request.redirect(order.get_portal_url())
 
         # clean context and session, then redirect to the confirmation page