diff --git a/addons/website_event/controllers/main.py b/addons/website_event/controllers/main.py
index d4be8fb5132..1dd43541c94 100644
--- a/addons/website_event/controllers/main.py
+++ b/addons/website_event/controllers/main.py
@@ -255,6 +255,6 @@ class WebsiteEventController(http.Controller):
                 Attendees._prepare_attendee_values(registration))
 
         return request.render("website_event.registration_complete", {
-            'attendees': Attendees,
+            'attendees': Attendees.sudo(),
             'event': event,
         })