Bans per day display infinite

Bans per day display 'Inf' when it's running for 1 day or the number is too small. Need to check it out (division by 0?).

[atma@comodino ~]$ sudo f2bread -i

Log file: '/var/log/fail2ban.log'

First entry: 2013-06-26 05:46:57
Last  entry: 2013-06-26 10:36:53 
Time frame: 04:49:56
Banned IPs: 4
Countries:  1
Protocol(s):    [ssh-pf]
Bans per day:   Inf #1 
