diff --git a/attributs.py b/attributs.py
index e80ce91..54ffa6e 100644
--- a/attributs.py
+++ b/attributs.py
@@ -1262,31 +1262,9 @@ class loginShell(Attr):
     def parse_value(self, shell):
         #with open('/etc/shells') as f:
         #    shells = [ l.strip() for l in f.readlines() if not l.startswith('#') ]
-        shells = [u'/bin/csh',
- u'/bin/sh',
- u'/usr/bin/es',
- u'/usr/bin/ksh',
- u'/bin/ksh',
- u'/usr/bin/rc',
- u'/usr/bin/tcsh',
- u'/bin/tcsh',
- u'/usr/bin/esh',
- u'/bin/bash',
- u'/bin/rbash',
- u'/bin/zsh',
- u'/usr/bin/zsh',
- u'/usr/bin/screen',
- u'/bin/dash',
- u'/usr/bin/rssh',
- u'/usr/local/bin/disconnect_shell',
- u'/usr/scripts/surveillance/disconnect_shell',
- u'/usr/local/bin/badPassSh',
- u'/usr/bin/passwd',
- u'/bin/false',
- u'/usr/sbin/nologin'
- u'']
+        shells = config.shells_possibles
         if shell not in shells:
-            raise ValueError("Shell %r invalide" % shell)
+            raise ValueError("Shell %r invalide.\nLes shells valident sont : %s" % (shell, ', '.join(shells)))
         self.value = shell
 
 @crans_attribute