Index: wp-includes/comment-template.php
===================================================================
--- wp-includes/comment-template.php	(revision 11902)
+++ wp-includes/comment-template.php	(working copy)
@@ -1255,7 +1255,7 @@
 		}
 ?>
 		<<?php echo $tag ?> <?php comment_class(empty( $args['has_children'] ) ? '' : 'parent') ?> id="comment-<?php comment_ID() ?>">
-		<?php if ( 'ul' == $args['style'] ) : ?>
+		<?php if ( 'div' != $args['style'] ) : ?>
 		<div id="div-comment-<?php comment_ID() ?>" class="comment-body">
 		<?php endif; ?>
 		<div class="comment-author vcard">
@@ -1274,7 +1274,7 @@
 		<div class="reply">
 		<?php comment_reply_link(array_merge( $args, array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
 		</div>
-		<?php if ( 'ul' == $args['style'] ) : ?>
+		<?php if ( 'div' != $args['style'] ) : ?>
 		</div>
 		<?php endif; ?>
 <?php