diff --git a/addons/event/models/event_registration.py b/addons/event/models/event_registration.py
index 446b23cbac8..c94040fbc61 100644
--- a/addons/event/models/event_registration.py
+++ b/addons/event/models/event_registration.py
@@ -207,13 +207,13 @@ class EventRegistration(models.Model):
             message loaded by default
         """
         self.ensure_one()
-        template = self.env.ref('event.event_registration_mail_template_badge')
+        template = self.env.ref('event.event_registration_mail_template_badge', raise_if_not_found=False)
         compose_form = self.env.ref('mail.email_compose_message_wizard_form')
         ctx = dict(
             default_model='event.registration',
             default_res_id=self.id,
             default_use_template=bool(template),
-            default_template_id=template.id,
+            default_template_id=template and template.id,
             default_composition_mode='comment',
             default_email_layout_xmlid="mail.mail_notification_light",
         )