making apache and django add a trailing slash

My /train directory is aliased to a script in httpd.conf by: WSGIScriptAlias /train /some-path/../django.wsgi

And it works well, except for one problem. If a user goes to /train (with no trailing slash) it will not redirect him to /train/, but will just give him the right page. This is a problem because this way the relative links on this page lead to the wrong place when no trailing slash was used to access it.

How can this be worked out?