diff --git a/web/static/js/app.js b/web/static/js/app.js
index e5238a5..78f0ea9 100644
--- a/web/static/js/app.js
+++ b/web/static/js/app.js
@@ -61,7 +61,7 @@ document.getElementById('loginForm').addEventListener('submit', async (e) => {
 
 // Logout
 document.getElementById('logoutBtn').addEventListener('click', () => {
-    sessionId = null;
+    localStorage.removeItem('session_id');
     location.reload();
 });