Mailman CGI error!!!

The Mailman CGI wrapper encountered a fatal error. This entry is being stored in your syslog:
Group mismatch error.  Mailman expected the CGI
wrapper script to be executed as group "apache", but
the system's web server executed the CGI script as
group "antenna".  Try tweaking the web server to run the
script as group "apache", or re-run configure, 
providing the command line option `--with-cgi-gid=antenna'.