diff --git a/gestion/iscsi/slonlib.py b/gestion/iscsi/slonlib.py
index d71a7dd9..7615a97b 100644
--- a/gestion/iscsi/slonlib.py
+++ b/gestion/iscsi/slonlib.py
@@ -96,7 +96,7 @@ class Slon(object):
         '''Raccourci pour: print slon.cmd("show <what>")'''
         print self.cmd("show " + what)
 
-    def help(self, what):
+    def help(self, what = ""):
         '''Raccourci pour: print slon.cmd("help <what>")'''
         print self.cmd("help " + what)