diff --git a/inc/instance-config.php b/inc/instance-config.php
index 2f014fa9..51e79716 100644
--- a/inc/instance-config.php
+++ b/inc/instance-config.php
@@ -116,6 +116,7 @@
 	$config['additional_javascript'][] = 'js/forced-anon.js';
 	$config['additional_javascript'][] = 'js/toggle-locked-threads.js';
 	$config['additional_javascript'][] = 'js/toggle-images.js';
+	$config['additional_javascript'][] = 'js/threadscroll.js';
 
 	$config['font_awesome_css'] = '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css';