Index: category-template.php
===================================================================
--- category-template.php	(revision 5282)
+++ category-template.php	(working copy)
@@ -420,7 +420,7 @@
 	
 	$tag_list = $before;
 	foreach ( $tags as $tag )
-		$tag_links[] = '<a href="' . get_tag_link($tag->cat_ID) . '">' . $tag->cat_name . '</a>';
+		$tag_links[] = '<a href="' . get_tag_link($tag->cat_ID) . '" rel="tag">' . $tag->cat_name . '</a>';
 
 	$tag_links = join( $sep, $tag_links );
 	$tag_links = apply_filters( 'the_tags', $tag_links );