diff --git a/index.js b/index.js
index 62649d7..24abaa1 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 
 const request = require("request");
+const path = require("path");
 const colors = require("colors");
 const fs = require("fs");
 const regex = /(http(s)?:\/\/.)?(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/g
@@ -42,7 +43,7 @@ for (let i = 2; i < process.argv.length; i++) {
 for (let i = 2; i < process.argv.length; i++) {
     let arg = process.argv[i];
     if (!arg.startsWith("-")) {
-        fs.readFile(arg, 'utf8', function (err, data) {
+        fs.readFile(path.normalize(arg), 'utf8', function (err, data) {
             if (err) {
                 console.log(colors.red(err));
                 process.exit(1);
@@ -79,4 +80,4 @@ function checkUrl(url) {
             console.log(colors.grey(`[UNKNOWN] [${res.statusCode}] ${url}`))
         }
     })
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 868fc9b..c669712 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
   "homepage": "https://github.com/hyunjiLeeTech/URL-FI#readme",
   "dependencies": {
     "colors": "^1.4.0",
+    "path": "^0.12.7",
     "request": "^2.88.2"
   }
 }