diff --git a/themes/hugo-theme-flat/layouts/partials/head.html b/themes/hugo-theme-flat/layouts/partials/head.html
index 4af63d9..3c59d0b 100644
--- a/themes/hugo-theme-flat/layouts/partials/head.html
+++ b/themes/hugo-theme-flat/layouts/partials/head.html
@@ -90,8 +90,9 @@
 <link rel="preload" as="style" href="{{ "css/syntax.css" | relURL }}" />
 <link rel="preload" as="style" href="{{ "css/style.css" | relURL }}" />
 
-<link rel="preload" as="image" href="{{ "img/banner.jpg" | relURL }}" />
+<link rel="preload" as="image" href="{{ "img/banner_unknown.jpg" | relURL }}" />
 <link rel="preload" as="image" href="{{ "img/banner_open.jpg" | relURL }}" />
+<link rel="preload" as="image" href="{{ "img/banner_closed.jpg" | relURL }}" />
 <link rel="preload" as="image" href="{{ "doorstatus/open.png" | relURL }}" />
 <link rel="preload" as="image" href="{{ "doorstatus/closed" | relURL }}" />