diff --git a/themes/red/layouts/partials/sidebar.html b/themes/red/layouts/partials/sidebar.html
index 6b79d7f..424b158 100644
--- a/themes/red/layouts/partials/sidebar.html
+++ b/themes/red/layouts/partials/sidebar.html
@@ -1,5 +1,5 @@
 <nav>
-    <details id="nav-menu" open="true">
+    <details id="nav-menu" open>
         <summary>Navigation</summary>
         {{ $icon := resources.Get "external-link.svg" }}