diff --git a/addons/website/models/website.py b/addons/website/models/website.py
index 7a30ea3662b..3269e305e12 100644
--- a/addons/website/models/website.py
+++ b/addons/website/models/website.py
@@ -186,7 +186,7 @@ class Website(models.Model):
             public_user_to_change_websites = self.filtered(lambda w: w.sudo().user_id.company_id.id != values['company_id'])
             if public_user_to_change_websites:
                 company = self.env['res.company'].browse(values['company_id'])
-                super(Website, public_user_to_change_websites).write(dict(values, user_id=company._get_public_user().id))
+                super(Website, public_user_to_change_websites).write(dict(values, user_id=company and company._get_public_user().id))
 
         result = super(Website, self - public_user_to_change_websites).write(values)
         if 'cdn_activated' in values or 'cdn_url' in values or 'cdn_filters' in values: