diff --git a/carnet_rouge/models.py b/carnet_rouge/models.py
index 770c501..a22a44d 100644
--- a/carnet_rouge/models.py
+++ b/carnet_rouge/models.py
@@ -32,7 +32,7 @@ def increment_MessageId():
     return last_id + 1
 
 class cr_Message(models.Model):
-    uuid = models.UUIDField(default=uuid.uuid4(), editable=False, primary_key=True)
+    uuid = models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True)
     MessageId = models.IntegerField("ID Message",editable=False, unique=True, default=increment_MessageId)
     Caterogy = models.ForeignKey(cr_Category, on_delete=models.DO_NOTHING, verbose_name="Catégorie")
     sDestUsers = models.TextField("Liste des utilisateurs cibles")