diff --git a/source/_includes/header.html b/source/_includes/header.html
index f3a95de..5b55b41 100644
--- a/source/_includes/header.html
+++ b/source/_includes/header.html
@@ -8,3 +8,4 @@
 <meta name="author" content="Agatha" />
 <meta name="description" content="{{ page.title }}" />
 <meta property="og:image" itemprop="image" content="/assets/favicon.png" />
+<meta name="darkreader-lock" />