diff --git a/gestion/menage/old_wifi_machines.py b/gestion/menage/old_wifi_machines.py
index ff6d763f..935eba0a 100755
--- a/gestion/menage/old_wifi_machines.py
+++ b/gestion/menage/old_wifi_machines.py
@@ -84,4 +84,4 @@ def file_list(num):
     for last in xrange(1, num):
         yield "%s.%d.gz" % (base, last)
 
-do_cleanup(31*3)
+do_cleanup(31*2)