boot.local failed

Hello I installed the pure-ftpd from source and i want to start it when the system boots. I added that line in the /etc/rc.d/boot.local /usr/local/sbin/pure-ftpd -n 2000:30 -S my.server.com,21 -c 100 -C 2 -E -A -O clf:/var/log/pureftpd.log --tls=1 -F /home/.banner -l mysql:/etc/pureftpd-mysql.conf & But it doesn't start. Does anyone know what causes that malfunction?