diff --git a/eleventy.config.js b/eleventy.config.js
index 1f498f1..b16bb8e 100644
--- a/eleventy.config.js
+++ b/eleventy.config.js
@@ -1,3 +1,4 @@
+import { HtmlBasePlugin } from "@11ty/eleventy";
 import { eleventyImageTransformPlugin } from "@11ty/eleventy-img";
 import eleventyNavigationPlugin from "@11ty/eleventy-navigation";
 
@@ -46,6 +47,9 @@ export default async function (eleventyConfig) {
 	/* Passthroughs */
 	eleventyConfig.addPassthroughCopy("./favicon.ico");
 
+	/* HTML base */
+	eleventyConfig.addPlugin(HtmlBasePlugin);
+
 	/* Images */
 	eleventyConfig.addPlugin(eleventyImageTransformPlugin, {
 		// output image formats
diff --git a/src/sitemap.xml.njk b/src/sitemap.xml.njk
index 611f2d9..a066152 100644
--- a/src/sitemap.xml.njk
+++ b/src/sitemap.xml.njk
@@ -4,7 +4,6 @@ layout: false
 eleventyExcludeFromCollections: true
 ---
 <?xml version="1.0" encoding="utf-8"?>
-<?xml-stylesheet type="text/xsl" href="sitemap.xsl" ?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
 {% for page in collections.all %}
 	{% if page.data.permalink != false %}