XoopsTpl API Docs The default theme (and most other themes) has this line in the theme smarty file (theme.html) Which tells the Smarty Template Engine to take the assigned values for xoops_sitename and xoops_pagetitle and add them in the title. "Where do those values get filled?" you may ask. The answer is they are filled in header.php: Before you run off to header.php to mess with these lines, let me ask a question. What information are you wanting to put in the page title? If it is an article, you probably want to put the article title up there, if it is a forum post, you probably want the name of the thread up there. If this is the case, the proper way to deal with this problem is to add a line in the module page you want to modify: You'll find that XOOPS gives full control over the title tag (being that it is a variable that an application can modify), but the modules themselves need to assign relevant information to the template.