diff --git a/src/utils/legacyModWrapper.js b/src/utils/legacyModWrapper.js
index 12994e0..69030fa 100644
--- a/src/utils/legacyModWrapper.js
+++ b/src/utils/legacyModWrapper.js
@@ -13,7 +13,8 @@ module.exports = (legacyMod) => {
   let middleware = (req, res, logFacilities, config, next) => {
     let ext = req.parsedURL.pathname.match(/[^/]\.([^.]+)$/);
     if (!ext) ext = "";
-
+    else ext = ext[1].toLowerCase();
+    
     // Function to parse incoming POST data from the request
     const parsePostData = (options, callback) => {
       // If the request method is not POST, return a 405 Method Not Allowed error