diff --git a/frontend/js/auth.js b/frontend/js/auth.js
index ba08c06..4ad80b5 100644
--- a/frontend/js/auth.js
+++ b/frontend/js/auth.js
@@ -201,6 +201,9 @@ const AuthManager = {
     const logoutBtn = document.getElementById("logout-btn");
     if (logoutBtn) logoutBtn.addEventListener("click", () => AuthManager.logout());
 
+    // Also wire up the header dropdown "Sign out" (onclick="handleLogout()")
+    window.handleLogout = () => AuthManager.logout();
+
     const adminRow = document.getElementById("admin-menu-row");
     if (adminRow) {
       if (user.role === "admin") {