diff --git a/index.pl.html b/index.pl.html
index d69f0a75..7157d3c4 100644
--- a/index.pl.html
+++ b/index.pl.html
@@ -291,7 +291,7 @@ <h2>komentarze</h2>
             /* * * DON'T EDIT BELOW THIS LINE * * */
             (function() {
                 var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
-                dsq.src = 'http://' + disqus_shortname + '.disqus.com/embed.js';
+                dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
                 (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
             })();
         </script>