diff --git a/Templates/Pages/tune/uuid.html.twig b/Templates/Pages/tune/uuid.html.twig
index 0279c05..ab1757a 100644
--- a/Templates/Pages/tune/uuid.html.twig
+++ b/Templates/Pages/tune/uuid.html.twig
@@ -4,7 +4,7 @@
 
     <script src="/Static/JS/ThirdParty/abcjs-basic.js"></script>
     <!--<script src="/Static/JS/ThirdParty/midijs.js"></script>-->
-    <script src='http://www.midijs.net/lib/midi.js'></script>
+    <script type='text/javascript' src='//www.midijs.net/lib/midi.js'></script>
 
 
     <!--<script src="/Static/JS/ThirdParty/abcjs-plugin-min.js"></script>-->