diff --git a/surveillance/deconnexion.py b/surveillance/deconnexion.py
index f43af840..7f3afacc 100755
--- a/surveillance/deconnexion.py
+++ b/surveillance/deconnexion.py
@@ -290,7 +290,7 @@ if veroles:
 # Reconnexion si le virus a disparu
 ###################################
 
-requete = "SELECT ip_crans FROM avertis_virus"
+requete = "SELECT ip_crans FROM avertis_virus where date < timestamp 'now' - interval '1 hour'"
 curseur.execute(requete)
 infectes = curseur.fetchall()
 for i in range(1,len(infectes)):