diff --git a/ext_localconf.php b/ext_localconf.php
index 50119c1..5d8317d 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -22,7 +22,8 @@
         );
     }
 
-    // todo v11?
+    // todo v12?
+    // TYPO3\CMS\Backend\View\Event\PageContentPreviewRenderingEvent
     $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['tt_content_drawItem'][$extKey] =
         \SkillDisplay\SkilldisplayContent\Backend\Preview::class;