diff --git a/src/authentic2_pratic/models.py b/src/authentic2_pratic/models.py
index 0635739..75662ca 100644
--- a/src/authentic2_pratic/models.py
+++ b/src/authentic2_pratic/models.py
@@ -5,7 +5,7 @@ from django.db.models import (Model, TextField, CharField, EmailField,
 from django.utils.translation import ugettext_lazy as _
 from django.core.exceptions import ValidationError
 from django.dispatch import receiver
-from django.db.models.signals import post_save
+from django.db.models.signals import post_save, post_delete
 from django.contrib.auth.models import Group
 
 from authentic2 import managers
@@ -498,5 +498,6 @@ def user_post_save(sender, instance, **kwargs):
     if instance.is_admin:
         instance.collectivity.get_admin_role().members.add(instance)
 
-from authentic2.a2_rbac.signal_handlers import update_rbac_on_ou_save
-post_save.connect(update_rbac_on_ou_save, sender=Collectivity)
+from authentic2.a2_rbac.signal_handlers import update_rbac_on_ou_post_save, update_rbac_on_ou_post_delete
+post_save.connect(update_rbac_on_ou_post_save, sender=Collectivity)
+post_delete.connect(update_rbac_on_ou_post_delete, sender=Collectivity)