diff --git a/templates/include/post-render.tmpl b/templates/include/post-render.tmpl
index c4ed082..beb98aa 100644
--- a/templates/include/post-render.tmpl
+++ b/templates/include/post-render.tmpl
@@ -1,104 +1,104 @@
 <!-- Miscelaneous render related template parts we use multiple times -->
 {{define "collection-meta"}}
 	{{if .Monetization -}}
 		<meta name="monetization" content="{{.Monetization}}" />
 	{{- end}}
 {{end}}
 
 {{define "highlighting"}}
 <script>
   // TODO: this feels more like a mutation observer
   addEventListener('DOMContentLoaded', function () {
     var hlbaseUri = "/js/";
     var lb = document.querySelectorAll("code[class^='language-']");
 
 
     // Custom aliasmap
     var aliasmap = {
       "elisp"      : "lisp",
       "emacs-lisp" : "lisp",
       "c"          : "cpp",
       "cc"         : "cpp",
       "h"          : "cpp",
       "c++"        : "cpp",
       "h++"        : "cpp",
       "hpp"        : "cpp",
       "hh"         : "cpp",
       "hxx"        : "cpp",
       "cxx"        : "cpp",
       "sh"         : "bash",
       "js"         : "javascript",
       "jsx"        : "javascript",
       "html"       : "xml"
     };
 
     // Given a set of nodes, run highlighting on them
     function highlight(nodes) {
       for (i=0; i < nodes.length; i++) {
           hljs.highlightBlock(nodes[i]);
       }
     }
 
     // Given a array of URIs, load them in order
     function loadLanguages(uris, callback) {
       uris.forEach(function(uri) {
         var sc = document.createElement('script');
         sc.src = uri;
         sc.async = false; // critical?
 	  // Set callback on last script
         if (uris.indexOf(uri) == uris.length-1) {
 	  // Set callback regardless
 	  // so we're sure it will run if last element had error
 	  // (we only know after loading, so we've had load time already)
           sc.onload  = callback; sc.onerror = callback;
         }
         document.head.appendChild(sc);
       });
     }
 
     // We don't have to do anything if there are no language blocks
     if (lb.length > 0) {
       // We have blocks to be highlighted, so we load css
       var st = document.createElement('link');
       st.rel = "stylesheet";
       st.href = "/css/lib/atom-one-light.min.css";
       document.head.appendChild(st);
 
       // Construct set of files to load, in order
       var jss = [hlbaseUri + "highlight.min.js"];
       // Check what we need to load
       for (i=0; i < lb.length; i++) {
-        lang = lb[i].className.replace('language-','');
+        lang = lb[i].className.replace('language-','').toLowerCase();
         // Support the aliases specified above
         if (aliasmap[lang]) lang = aliasmap[lang];
         lurl = hlbaseUri + "highlightjs/" + lang + ".min.js";
         if (!jss.includes(lurl)) {
           jss.push(lurl);
         }
       }
       // Load files in order, higlight on last load
       loadLanguages(jss, () => {highlight(lb)});
     }
   });
 </script>
 {{end}}
 
 <!-- Include mathjax configuration -->
 {{define "mathjax"}}
 <script>
   MathJax = {
       tex: {
         inlineMath: [
           ["\\(", "\\)"],
           ['$', '$'],
         ],
         displayMath: [
           ['$$', '$$'],
           ['\\[', '\\]'],
         ],
       },
     };
 </script>
 <script type="text/javascript" id="MathJax-script" src="/js/mathjax/tex-svg-full.js" async>
 </script>
 {{end}}