diff --git a/surveillance/deconnexion.py b/surveillance/deconnexion.py
index a4e3a127..ba731cda 100755
--- a/surveillance/deconnexion.py
+++ b/surveillance/deconnexion.py
@@ -424,7 +424,11 @@ for ip, id_p2p, nombre in fraudeurs:
         continue
     
     # Récupération des ref de la machine
-    machine = ldap.search('ipHostNumber=%s' % ip, 'w' )['machine'][0]
+    machines = ldap.search('ipHostNumber=%s' % ip, 'w' )['machine']
+    if len(machine) == 0:
+        # La machine a ete supprimee entre temps
+        continue
+    machine = machines[0]
     hostname = machine.nom()
     proprio = machine.proprietaire()    
     blacklist = proprio.blacklist()