diff --git a/actions/newgroup.php b/actions/newgroup.php
index 2951920362..05520223c0 100644
--- a/actions/newgroup.php
+++ b/actions/newgroup.php
@@ -146,7 +146,7 @@ class NewgroupAction extends Action
             // TRANS: %d is the maximum number of allowed characters.
             $this->showForm(sprintf(_m('Description is too long (maximum %d character).',
                                        'Description is too long (maximum %d characters).',
-                                       User_group::maxDescription(),
+                                       User_group::maxDescription()),
                                     User_group::maxDescription()));
             return;
         } else if (!is_null($location) && mb_strlen($location) > 255) {