diff --git a/module/doc/view/tablecontents.html.php b/module/doc/view/tablecontents.html.php
index 3ff302e11f..5bd16ca0b5 100644
--- a/module/doc/view/tablecontents.html.php
+++ b/module/doc/view/tablecontents.html.php
@@ -32,7 +32,7 @@ if(empty($type)) $type = 'product';
 <div class="cell<?php if($browseType == 'bySearch') echo ' show';?>" id="queryBox" data-module=<?php echo $type . 'Doc';?>></div>
 <div class="main-table-content">
   <div class="side panel">
-    <div id="fileTree"></div>
+    <div id="fileTree" class="file-tree"></div>
   </div>
   <div class="content panel" id="<?php echo $type;?>">
     <div class="detail">