diff --git a/templates/root.html b/templates/root.html
index 7f57b9b..ff0d097 100644
--- a/templates/root.html
+++ b/templates/root.html
@@ -8,7 +8,7 @@
     {{ end }}
     <meta name="viewport" content="width=device-width, initial-scale=1" />
   </head>
-  <body{{ if is .Dark }} class="dark" {{end}}>
+  <body{{ if .Dark }} class="dark" {{end}}>
     <nav>
       <div class="spacer"></div>
       <span class="title">{{ .Title }}</span>