Lighttpd

I need to run LightTPD and Apache on the same box.

Apache should continue to use port 80, but Lighty to use port 8000.

I have the following in the lighttpd.conf file
server.port = 8000

and indeed it does serve this port, however when I start Lighty, it fails because it says port 80 is in use (which it is, by Apache).

Is there a way to config Lighty to only use the server.port value - I presume by default it tries to use port 80 AND any specific server.port