diff --git a/wp-admin/includes/update-core.php b/wp-admin/includes/update-core.php
index 71e9e99a13..0e20e06524 100644
--- a/wp-admin/includes/update-core.php
+++ b/wp-admin/includes/update-core.php
@@ -237,6 +237,8 @@ $_old_files = array(
 'wp-admin/images/fav-arrow-vs.png',
 'wp-admin/images/fav-arrow-vs-rtl.png',
 'wp-admin/images/fav-top-vs.png',
+'wp-admin/images/visit-site-button-grad-vs.gif',
+'wp-admin/images/visit-site-button-grad.gif'
 );
 
 /**