diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 155c559..c2570c5 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!doctype html>
 
 {{ $.Scratch.Delete "bg_color" }}<!---->
 {{ $.Scratch.Delete "social_list" }}<!---->
@@ -35,7 +35,7 @@
 <html
   class="not-ready lg:text-base"
   style="--bg: {{ $.Scratch.Get `bg_color` }}"
-  lang="{{ site.LanguageCode }}"
+  lang="{{ or site.LanguageCode site.Language.Lang }}"
 >
   {{ partial "head.html" . }}
   <body class="text-black duration-200 ease-out dark:text-white">
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 42ae705..0c66208 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -59,7 +59,7 @@
   {{ end }}
   <!---->
 
-  {{ if or .Params.math .Site.Params.math }}
+  {{ if or .Params.math site.Params.math }}
   <!---->
   {{ partial "math.html" . }}
   <!---->
