uncusccesful in excluding directories

[Ruud H. Koning]

Hello, I am trying to upload a website from my home computer to my isp. However, one subdir of the local website should not be uploaded. I tried this using

rsync --verbose --progress --stats --compres --rsh=/usr/bin/ssh 
--exclude="/home/ruud/public_html/rhkoning.com/internet-sites/" 
/home/ruud/public_html/rhkoning.com/ user at xs4all.nl:WWW

However, according to the output, the directory 
/home/ruud/public_html/rhkoning.com/ is skipped and nothing happens.
What am I doing wrong? Thanks, Ruud