diff --git a/bin/noblogs.in b/bin/noblogs.in
index 5d2af50a89dce191b891d49acf091e5c9ec19d95..418021f43cd83ad4db10cc5365dc2aa2236805b4 100755
--- a/bin/noblogs.in
+++ b/bin/noblogs.in
@@ -239,7 +239,7 @@ function do_check_upgrade($args) {
 
 // 'upgrade': Upgrade a blog.
 function do_upgrade($args) {
-  //include(NOBLOGS_ROOT . "/wp-admin/includes/upgrade.php");
+  require_once(NOBLOGS_ROOT . "/wp-admin/includes/upgrade.php");
 
   foreach ($args as $arg) {
     $blog = noblogs_get_blog($arg);