diff --git a/chapter01/1.3 - URLify/urlify.js b/chapter01/1.3 - URLify/urlify.js
index 7e993d5..73d8a50 100644
--- a/chapter01/1.3 - URLify/urlify.js	
+++ b/chapter01/1.3 - URLify/urlify.js	
@@ -1,6 +1,6 @@
 var urlify = function(str, length) {
   // have a pointer to check from start to end
-  var strArr = str.split('');
+  var strArr = str.trim().split('');
   var pointer = 0;
   while (pointer < str.length) {
     if (strArr[pointer] === ' ') {