diff --git a/03_reverseString/reverseString.js b/03_reverseString/reverseString.js
index 5ce90ac..652e0b6 100644
--- a/03_reverseString/reverseString.js
+++ b/03_reverseString/reverseString.js
@@ -1,5 +1,5 @@
-const reverseString = function(str) {
-
+const reverseString = function(string) {
+  return string.split('').reverse().join('');
 };
 
 module.exports = reverseString;