diff --git a/backend/src/index.ts b/backend/src/index.ts
index 0d3f05eb..f601fc74 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -133,8 +133,8 @@ app.use('/api/documents', documentRoutes);
 app.use('/api/subscriptions', subscriptionRoutes);
 app.use('/api/notifications', notificationRoutes);
 
-// 404 handler - Express 5 requires explicit path
-app.all('*', (req, res) => {
+// 404 handler - Express 5 compatible
+app.use((req, res) => {
   res.status(404).json({
     success: false,
     message: 'Route not found',