diff --git a/gestion/models.py b/gestion/models.py
index bdf2aa1c..2183e359 100644
--- a/gestion/models.py
+++ b/gestion/models.py
@@ -95,7 +95,7 @@ class Association(models.Model):
     )
 
     def natural_key(self):
-        return self.name
+        return [self.name]
 
     class Meta:
         verbose_name = _("association")