Spawn-fcgi Pidfile

I have php running as fastcgi for nginx and I'm trying to setup monit to monitor the php process and restart it when it crashes. The problem is that I can't seem to figure out which pidfile I should have monit look at.

Here's part of my script that starts the spawn-fcgi process:

#!/bin/bash
#
# chkconfig: 345 22 82
# description: The php-cgi spawnr

## ABSOLUTE path to the spawn-fcgi binary
SPAWNFCGI="/usr/local/bin/spawn-fcgi"

## ABSOLUTE path to the PHP binary
FCGIPROGRAM="/etc/lighttpd/php/bin/php"

FCGIPID="/var/run/php-fcgi.pid"

## TCP port to which to bind on localhost
FCGIPORT="1026"

## number of PHP children to spawn
PHP_FCGI_CHILDREN=8

## maximum number of requests a single PHP process can serve before it is restarted
PHP_FCGI_MAX_REQUESTS=1500

I added the FCGIPID (saw it in an example), but it doesn't seem to do anything. I tried creating a pid file but the pid in it doesn't get updated when I start/stop the script.