diff --git a/surveillance/deconnexion.py b/surveillance/deconnexion.py
index 39fab1a7..c142706f 100755
--- a/surveillance/deconnexion.py
+++ b/surveillance/deconnexion.py
@@ -65,7 +65,7 @@ ldap = crans_ldap()
 # Vérification de l'upload et du download #
 ###########################################
 
-requete_template = "SELECT ip_crans,round(sum(upload)/1024/1024) AS total FROM %(table)s WHERE upload>download AND date>timestamp 'now' - interval '1 day' AND date<'now' AND NOT EXISTS ( SELECT 1 FROM exemptes WHERE %(table)s.ip_crans<<=exemptes.ip_crans and %(table)s.ip_ext<<=exemptes.ip_dest) GROUP BY ip_crans ORDER BY total desc"
+requete_template = "SELECT ip_crans,round(sum(upload)/1024/1024) AS total FROM %(table)s WHERE upload>download AND date>timestamp 'now' - interval '23 hours 50 minutes' AND date<'now' AND NOT EXISTS ( SELECT 1 FROM exemptes WHERE %(table)s.ip_crans<<=exemptes.ip_crans and %(table)s.ip_ext<<=exemptes.ip_dest) GROUP BY ip_crans ORDER BY total desc"
 
 # table générale d'upload
 requete = requete_template % {'table':'upload'}