diff --git a/addons/website_sale/static/src/js/website_sale.js b/addons/website_sale/static/src/js/website_sale.js
index 6e163e18ab8..3e9151a2dcd 100644
--- a/addons/website_sale/static/src/js/website_sale.js
+++ b/addons/website_sale/static/src/js/website_sale.js
@@ -213,7 +213,7 @@ $('.oe_website_sale').each(function () {
         var product_id = false;
         for (var k in variant_ids) {
             if (_.isEmpty(_.difference(variant_ids[k][1], values))) {
-                openerp.website.ready(function() {
+                openerp.website.ready().then(function() {
                     $price.html(price_to_str(variant_ids[k][2]));
                     $default_price.html(price_to_str(variant_ids[k][3]));
                 });