diff --git a/gestion/gen_confs/droits.py b/gestion/gen_confs/droits.py
index cf0c7e96..57f683b0 100755
--- a/gestion/gen_confs/droits.py
+++ b/gestion/gen_confs/droits.py
@@ -105,9 +105,9 @@ class droits_ldap(CransLdap, droits):
 
             if ML[0] == '+' :
                 ML = ML[1:]
-                only_add = 1
+                only_add = True
             else :
-                only_add = 0
+                only_add = False
 
             # Instance correspondant à la ML
             mlist = MailList.MailList(ML)