Cheshire Cat Computing

I get this messages:
check_dummy: Arguments to check_dummy must be an integer

These are my settings:

define command{
command_name check_dummy
$USER1$/check_dummy $ARF$
}

define service {
service_description eventlog
active_checks_enabled 0
passive_checks_enabled 1
flap_detection_enabled 0
is_volatile 0
check_period 24x7
max_check_attemps 1
normal_check_interval 5
retry_check_interval 1
check_freshness 1
freshness threshold 1800
contact_groups admins
notification_interval 120
notification_period 24x7
notification options w,u,c,r
stalking_options w,c,u
name eventlog
check_command check_dummy!0
}

define service{
use eventlog
service_description System Eventlog
host_name E-HTWSBS01
}

_________________
Steve Shipway
UNIX Systems, ITSS, University of Auckland, NZ
Woe unto them that rise up early in the morning... -- Isaiah 5:11