Not Working

On the nagios client side, NRPE is giving proper output. But, Nagios Core is showing something else.

On Nagios Clinet (NRPE):
/usr/lib64/nagios/plugins/check_numoffiles.sh -d /var/named/
213 files – ok

NRPE.CFG File Configuration:
command[check_files]=/usr/lib64/nagios/plugins/check_numoffiles.sh -d /var/named/

Error comes in Nagios Core:
/usr/local/nagios/libexec/check_nrpe -H 203.77.200.10 -c check_files

0 files – ok

I don’t understand why it is showing -0 files? The plugin is pretty much simple to run.