diff --git a/arbre.ldif b/arbre.ldif
index e76964c..7f8e777 100644
--- a/arbre.ldif
+++ b/arbre.ldif
@@ -1,3 +1,6 @@
+dn: dc=od
+objectClass: domain
+
 dn: ou=opendoor.fr,dc=od
 objectClass: organizationalUnit
 ou: opendoor.FR