diff --git a/src/Controller/DocumentationController.php b/src/Controller/DocumentationController.php
index b8a4cb46d..04faf8d8b 100644
--- a/src/Controller/DocumentationController.php
+++ b/src/Controller/DocumentationController.php
@@ -24,6 +24,8 @@ public function __invoke(string $section = 'introduction'): View
             'section_title' => $this->documentationMenuFactory->createSectionTitle($section),
             'section_markdown_contents' => $markdownContents,
             'documentation_menu_categories' => $this->documentationMenuFactory->create(),
+            'codeMirror' => true,
+            // seo
             'metaTitle' => 'Rector Docs: PHP Refactoring Guide',
             'metaDescription' => 'Explore Rector’s documentation for PHP code refactoring and upgrades. Learn how to automate and optimize your codebase with ease.',
         ]);