diff --git a/alacarte-novel-website/js/app.js b/alacarte-novel-website/js/app.js
index 38b2ad7..1f05f3d 100644
--- a/alacarte-novel-website/js/app.js
+++ b/alacarte-novel-website/js/app.js
@@ -493,7 +493,8 @@ function initSidebar() {
 
 function getCurrentChapterId() {
     const urlParams = new URLSearchParams(window.location.search);
-    return parseInt(urlParams.get('id')) || 1;
+    const id = urlParams.get('id');
+    return id ? parseFloat(id) : 1;
 }
 
 function recordReadingProgress(chapterId) {