diff --git a/gestion/gen_confs/adherents.py b/gestion/gen_confs/adherents.py
index 512f88b0..0e99f46b 100644
--- a/gestion/gen_confs/adherents.py
+++ b/gestion/gen_confs/adherents.py
@@ -4,7 +4,7 @@
 # Copyright (C) Frédéric Pauget
 # Licence : GPLv2
 
-import smtplib, sys, commands, shutil, os, traceback
+import smtplib, sys, commands, shutil, os, traceback,grp
 sys.path.append('/usr/scripts/gestion')
 from affich_tools import cprint, anim, OK, WARNING, ERREUR
 import config
@@ -168,8 +168,8 @@ class home:
 		### Owncloud dans le home
                 if not os.path.exists(home + '/OwnCloud'):
                     os.mkdir(home + '/OwnCloud')
-                os.chown(home + '/OwnCloud', int(uid), "www-data")
-                os.chmod(home + '/OwnCloud',770)
+                os.chown(home + '/OwnCloud', int(uid), grp.getgrnam('www-data').gr_gid)
+                os.chmod(home + '/OwnCloud',0770)
             except:
                 print ERREUR
                 if self.debug: