Index: bbp-includes/bbp-forum-template.php
===================================================================
--- bbp-includes/bbp-forum-template.php	(revision 3909)
+++ bbp-includes/bbp-forum-template.php	(working copy)
@@ -687,6 +687,8 @@
 	$defaults = array (
 		'before'            => '<ul class="bbp-forums-list">',
 		'after'             => '</ul>',
+		'list_before'		=> '',
+		'list_after'		=> '',
 		'link_before'       => '<li class="bbp-forum">',
 		'link_after'        => '</li>',
 		'count_before'      => ' (',
@@ -739,7 +741,7 @@
 		}
 
 		// Output the list
-		echo apply_filters( 'bbp_list_forums', $before . $output . $after, $args );
+		echo apply_filters( 'bbp_list_forums', $before . $list_before . $output . $list_after . $after, $args );
 	}
 }