diff --git a/BTCPayServer/wwwroot/checkout/coinswitch.html b/BTCPayServer/wwwroot/checkout/coinswitch.html
index f8e4ea4d9..06314ecd4 100644
--- a/BTCPayServer/wwwroot/checkout/coinswitch.html
+++ b/BTCPayServer/wwwroot/checkout/coinswitch.html
@@ -6,7 +6,7 @@
     <script>
         var script = document.createElement('script'),
             head = document.head || document.getElementsByTagName('head')[0];
-        script.src = window.location.protocol + '//files.coinswitch.co/public/js/cs_switch.js';
+        script.src = 'https://files.coinswitch.co/public/js/cs_switch.js';
         head.insertBefore(script, head.firstChild);
         script.addEventListener('load', function () {
             var qs = (function (a) {