diff --git a/actions/doc.php b/actions/doc.php
index 6c88c4200c..728bf24b1c 100644
--- a/actions/doc.php
+++ b/actions/doc.php
@@ -19,8 +19,6 @@
 
 if (!defined('LACONICA')) { exit(1); }
 
-require_once('markdown.php');
-
 class DocAction extends Action {
 
 	function handle($args) {
diff --git a/lib/common.php b/lib/common.php
index 1a61eda6db..e16d8d078a 100644
--- a/lib/common.php
+++ b/lib/common.php
@@ -92,3 +92,5 @@ require_once(INSTALLDIR.'/classes/Subscription.php');
 require_once(INSTALLDIR.'/classes/User.php');
 require_once(INSTALLDIR.'/classes/Confirm_address.php');
 require_once(INSTALLDIR.'/classes/Remember_me.php');
+
+require_once('markdown.php');