diff --git a/wp-admin/includes/update-core.php b/wp-admin/includes/update-core.php
index 6089f6da1e..5586347d48 100644
--- a/wp-admin/includes/update-core.php
+++ b/wp-admin/includes/update-core.php
@@ -562,6 +562,11 @@ $_old_files = array(
 'wp-admin/js/cat.js',
 'wp-admin/js/cat.min.js',
 'wp-includes/js/tinymce/plugins/wpeditimage/js/editimage.min.js',
+// 3.8
+'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/more_bug.gif',
+'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/page_bug.gif',
+'wp-includes/js/thickbox/tb-close.png',
+'wp-includes/js/thickbox/tb-close-2x.png',
 );
 
 /**