diff --git a/modules/forum/forum.module b/modules/forum/forum.module
index 7f53a94f8a24966066c166ebcd98167c877fcd79..a7424cbcc9fcce3953968d086be960eadf7685bf 100644
--- a/modules/forum/forum.module
+++ b/modules/forum/forum.module
@@ -195,7 +195,6 @@ function forum_nodeapi(&$node, $op, $teaser, $page) {
         $breadcrumb[] = array('path' => 'node/'. $node->nid);
         menu_set_location($breadcrumb);
 
-        $node = node_prepare($node, $teaser);
         if (!$teaser) {
           $node->content['forum_navigation'] = array(
             '#value' => theme('forum_topic_navigation', $node),