Target Files that End with HTML

[zaltek]

Guys, I'm using the following in my .htaccess file but it's not working.

<FilesMatch ".(html|htm)$">
php_value auto_prepend_file prepend.php
</FilesMatch>

Basically, I'm trying to prepend a file but only if the extension is html or htm. I have configured my Apache server to allow overrides and all the files are there. What is wrong with my code?

[zaltek]

Never mind guys, I just found out how to do it. For reference, it's:

<Files *.css>
php_value auto_prepend_file prepend.php
</Files>