diff --git a/ldap/schema/cadoles.schema b/ldap/schema/cadoles.schema
index 268da0a..d1ac852 100644
--- a/ldap/schema/cadoles.schema
+++ b/ldap/schema/cadoles.schema
@@ -131,5 +131,6 @@ objectclass (  2.16.840.1.113732.3.1.4
   NAME 'cadolesGroup'
   DESC 'Descirption Groupe Cadoles'
   SUP top AUXILIARY
-  MAY  ( cadolesMember
+  MAY  ( cadolesMember $
+         mail
   ) )