diff --git a/addons/website_form/controllers/main.py b/addons/website_form/controllers/main.py
index bd7a68c3c22..9de4b95d406 100644
--- a/addons/website_form/controllers/main.py
+++ b/addons/website_form/controllers/main.py
@@ -19,6 +19,11 @@ from odoo.addons.base.models.ir_qweb_fields import nl2br
 
 class WebsiteForm(http.Controller):
 
+    @http.route('/website_form/', type='http', auth="public", methods=['POST'], multilang=False)
+    def website_form_empty(self, **kwargs):
+        # This is a workaround to don't add language prefix to <form action="/website_form/" ...>
+        return ""
+
     # Check and insert values from the form on the model <model>
     @http.route('/website_form/<string:model_name>', type='http', auth="public", methods=['POST'], website=True, csrf=False)
     def website_form(self, model_name, **kwargs):