diff --git a/yunohost_monitor.py b/yunohost_monitor.py
index 05d07eb1..bbc57ced 100644
--- a/yunohost_monitor.py
+++ b/yunohost_monitor.py
@@ -360,9 +360,10 @@ def monitor_enable(no_stats=False):
     # Install crontab
     if not no_stats:
         cmd = 'yunohost monitor update-stats'
+        #  day: every 5 min  #  week: every 1 h  #  month: every 4 h  #
         rules = ('*/5 * * * * root %(cmd)s day --no-ldap >> /dev/null\n' + \
                  '0 * * * * root %(cmd)s week --no-ldap >> /dev/null\n' + \
-                 '* */4 * * * root %(cmd)s month --no-ldap >> /dev/null') % {'cmd': cmd}
+                 '0 */4 * * * root %(cmd)s month --no-ldap >> /dev/null') % {'cmd': cmd}
         os.system("touch %s" % crontab_path)
         os.system("echo '%s' >%s" % (rules, crontab_path))