diff --git a/event/models.py b/event/models.py
index cd96040..7560ae1 100644
--- a/event/models.py
+++ b/event/models.py
@@ -1,22 +1,15 @@
 from django.contrib.auth import get_user_model
-from django.core.validators import RegexValidator
 from django.core.exceptions import FieldDoesNotExist, FieldError
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
 from communication.models import SubscriptionMixin
 
+from .validators import ColorValidator
+
 User = get_user_model()
 
 
-ColorValidator = RegexValidator(
-    regex=r'^#(?:[0-9a-fA-F]{3}){1,2}$',
-    message=_(
-        "La chaîne de caractère rentrée n'est pas une couleur en hexadécimal."
-    ),
-)
-
-
 class Event(SubscriptionMixin, models.Model):
     title = models.CharField(
         _("nom de l'évènement"),
diff --git a/event/tests.py b/event/tests.py
index 36dee90..29c840f 100644
--- a/event/tests.py
+++ b/event/tests.py
@@ -97,14 +97,14 @@ class ActivityInheritanceTest(TestCase):
         self.assertEqual(self.real_act.get_herited('max_perm'), 1)
 
     def test_inherits_place(self):
-        self.template_act.place.add(self.loge)
+        self.template_act.places.add(self.loge)
         self.assertEqual(
-                self.real_act.get_herited('place').get(),
+                self.real_act.get_herited('places').get(),
                 self.loge
             )
-        self.real_act.place.add(self.aqua)
+        self.real_act.places.add(self.aqua)
         self.assertEqual(
-                self.real_act.get_herited('place').get(),
+                self.real_act.get_herited('places').get(),
                 self.aqua
             )