oEmbed in excerpts

First thing first: this is a great plugin, solved many of my problems. Thanks a lot.

Now, I’m trying to enable oEmbed on my Excerpts, so I put this snippet in my theme’s functions file:

add_filter(‘the_excerpt’, array($GLOBALS[‘wp_embed’], ‘autoembed’), 9);

Then I paste a youtube link in the Excerpts field, but WordPress just displays the link, not the video. I don know if there is a setting for this and I’m not able to find it. Otherwise, could you take a look at it?

Thanks in advance!