diff --git a/addons/website_sale/controllers/main.py b/addons/website_sale/controllers/main.py
index 2d9a3926270..c106205f056 100644
--- a/addons/website_sale/controllers/main.py
+++ b/addons/website_sale/controllers/main.py
@@ -699,6 +699,7 @@ class website_sale(http.Controller):
             if tx.state == 'draft':  # button cliked but no more info -> rewrite on tx or create a new one ?
                 tx.write({
                     'acquirer_id': acquirer_id,
+                    'amount': order.amount_total,
                 })
             tx_id = tx.id
         else: