diff --git a/phpBB/phpbb/template/twig/extension.php b/phpBB/phpbb/template/twig/extension.php
index c42ad34692..cc8c2acf04 100644
--- a/phpBB/phpbb/template/twig/extension.php
+++ b/phpBB/phpbb/template/twig/extension.php
@@ -73,7 +73,6 @@ class extension extends \Twig_Extension
 			new \Twig_SimpleFilter('subset', array($this, 'loop_subset'), array('needs_environment' => true)),
 			// @deprecated 3.2.0 Uses twig's JS escape method instead of addslashes
 			new \Twig_SimpleFilter('addslashes', 'addslashes'),
-			new \Twig_SimpleFilter('format_bytes', 'get_formatted_filesize'),
 		);
 	}