diff --git a/res/index.js b/res/index.js
index 33d184c..b6c499b 100644
--- a/res/index.js
+++ b/res/index.js
@@ -69,7 +69,7 @@ const onButtonClick = (buttonId) => {
 
 const getButtonFromPathname = (pathname) => {
     let button = 'button-home';
-    for (const [k, v] of buttonMap) {
+    for (const [k, v] of Object.entries(buttonMap)) {
         if (v === pathname) {
             button = k;
             break;