diff --git a/gestion/chambres_vides.py b/gestion/chambres_vides.py
index 70305fe1..488f4bdf 100755
--- a/gestion/chambres_vides.py
+++ b/gestion/chambres_vides.py
@@ -63,7 +63,7 @@ for clandestin in bad_boys_e_s:
     delta = now - kickout_date
     ttl = delai*86400 - delta
     if ttl > 0:
-        if sendmails and machine_liste != [] or DEBUG:
+        if (sendmails and machine_liste != [] or DEBUG) and (ttl >= (delai - 1)*86400 or 0 < ttl <= 86400):
             # On lui envoie un mail pour le prévenir
             to = clandestin.mail()
             if not "@" in to: