diff --git a/include/admin/upgrader.inc.php b/include/admin/upgrader.inc.php
index 7c3c3fdb..68f212d6 100644
--- a/include/admin/upgrader.inc.php
+++ b/include/admin/upgrader.inc.php
@@ -246,7 +246,7 @@ $tasks = array(array('version'   => '0.5.1',
                array('version'   => '2.0.2',
                      'function'  => 'serendipity_removeDeadFiles_SPL',
                      'title'     => 'Removal of obsolete and still resting files in 2.0',
-                     'arguments' => array(substr($serendipity['serendipityPath'], 0, -1), $dead_files_rest, array('htmlarea/plugins/ImageManager','htmlarea/plugins', 'bundled-libs/YahooUI/treeview/', 'bundled-libs/YahooUI'), true),
+                     'arguments' => array(substr($serendipity['serendipityPath'], 0, -1), $dead_files_rest, array('htmlarea/plugins/ImageManager','htmlarea/plugins', 'bundled-libs/YahooUI/treeview', 'bundled-libs/YahooUI'), true),
                      'desc'      => 'The following dead files will additionally be removed from "/" and "htmlarea".<br><pre>' . implode(', ', $dead_files_rest) . '</pre>'),