diff --git a/modules/system/system.module b/modules/system/system.module
index 946ef0c..36260b9 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -637,7 +637,8 @@ function system_menu() {
 
   foreach (list_themes() as $key => $theme) {
     $items['admin/appearance/settings/' . $theme->name] = array(
-      'title' => $theme->info['name'],
+      'title callback' => '_system_theme_name',
+      'title arguments' => array($key),
       'page arguments' => array('system_theme_settings', $theme->name),
       'type' => MENU_LOCAL_TASK,
       'access callback' => '_system_themes_access',
@@ -1690,6 +1691,14 @@ function _system_themes_access($theme) {
 }
 
 /**
+ * Menu item title callback.
+ */
+function _system_theme_name($theme) {
+  $themes = list_themes();
+  return $themes[$theme]->info['name'];
+}
+
+/**
  * @defgroup authorize Authorized operations
  * @{
  * Functions to run operations with elevated privileges via authorize.php.