Please support wget for download URL

While trying to download the latest version of OpenFire on Linux using wget, I use the following command:

wget ‘http://www.igniterealtime.org/downloadServlet?filename=openfire/openfire-3.4.2-1 .i386.rpm’

the resulting file becomes:

-rw-rr 1 root root 40451331 Dec 11 17:39 downloadServlet?filename=openfire%2Fopenfire-3.4.2-1.i386.rpm

While I don’t really mind renaming the file name each time I download a new release, it does get old

Thanks!

Bernard