diff --git a/event/models.py b/event/models.py
index 5b8910f..186a3db 100644
--- a/event/models.py
+++ b/event/models.py
@@ -3,9 +3,10 @@ from django.utils.translation import ugettext_lazy as _
 from django.core.validators import RegexValidator
 from django.core.exceptions import FieldError
 from django.db import models
+from communication.models import Commentable, Notifying
 
 
-class Event(models.Model):
+class Event(Commentable):
     title = models.CharField(
                     _("nom de l'évènement"),
                     max_length=200,
@@ -87,7 +88,7 @@ class ActivityTag(models.Model):
         return self.name
 
 
-class ActivityTemplate(models.Model):
+class ActivityTemplate(Commentable):
     title = models.CharField(
                     _("nom de l'activité"),
                     max_length=200,