diff --git a/util.js b/util.js
index 7388b2c..0f4c0de 100644
--- a/util.js
+++ b/util.js
@@ -289,7 +289,7 @@ module.exports.makeDownloadFile = function (config, resource, type = ".jar") {
 
 module.exports.redirectToMaster = function (req, res, config) {
     if (config.server.masterHost && config.server.masterHost.length > 0) {
-        let url = req.protocol + "://" + config.server.masterHost + req.originalUrl;
+        let url = "https://" + config.server.masterHost + req.originalUrl;
         console.log("Redirecting slave request to master:", url);
         res.redirect(307, url);
     } else {