diff --git a/phpBB/templates/PSO/PSO.cfg b/phpBB/templates/PSO/PSO.cfg
index 5cfd2159c1..0744d042c4 100644
--- a/phpBB/templates/PSO/PSO.cfg
+++ b/phpBB/templates/PSO/PSO.cfg
@@ -39,6 +39,7 @@ $images['folder_new'] = "images/folder_new.gif";
 $images['folder_hot'] = "images/folder_hot.gif";
 $images['folder_new_hot'] = "images/folder_new_hot.gif";
 $images['folder_locked'] = "images/folder_lock.gif";
+$images['folder_locked_new'] = "images/folder_lock_new.gif";
 $images['folder_sticky'] = "images/folder_sticky.gif";
 $images['folder_sticky_new'] = "images/folder_sticky_new.gif";
 $images['folder_announce'] = "images/folder_announce.gif";