diff --git a/index.html b/index.html
index ddd467b..8f42032 100644
--- a/index.html
+++ b/index.html
@@ -17,9 +17,11 @@ <h1>GitHub Profile Viewer</h1>
 
   <script src="script.js"></script>
   <script>
-    document.addEventListener('DOMContentLoaded', function() {
-      document.getElementById('search-btn').addEventListener('click', getProfile);
-    });
+    document.addEventListener('DOMContentLoaded', init);
+    function init() {
+      const searchBtn = document.getElementById('search-btn');
+      searchBtn.addEventListener('click', getProfile);
+    }
   </script>
 </body>
 </html>