diff --git a/src/utils/getIP.js b/src/utils/getIP.js
index 469c705..a26130b 100644
--- a/src/utils/getIP.js
+++ b/src/utils/getIP.js
@@ -1,4 +1,3 @@
-var fs = require('fs');
 var config = require('../config.js');
 
 module.exports = function getIP(req) {
@@ -6,11 +5,11 @@ module.exports = function getIP(req) {
 
   switch (config.behindProxy) {
     case "X-Forwarded-For":
-      return req.headers['X-Forwarded-For'];
+      return req.headers['x-forwarded-for'];
     case "Cloudflare":
-      return req.headers['CF-Connecting-IP'];
+      return req.headers['cf-connecting-ip'];
     case "X-Real-IP":
-      return req.headers['X-Real-IP'];
+      return req.headers['x-real-ip'];
     default:
       return req.connection.remoteAddress;
   }