diff --git a/backend/src/index.js b/backend/src/index.js
index 0b4218e..1b1beb0 100644
--- a/backend/src/index.js
+++ b/backend/src/index.js
@@ -10,6 +10,7 @@ app.use(express.json());
 // ── API ───────────────────────────────────────────────────────────────────────
 app.use('/api/auth',      require('./routes/auth'));
 app.use('/api/admin',     require('./routes/admin'));
+app.use('/api/calendar',  require('./routes/calendar'));
 app.use('/api/dashboard', require('./routes/dashboard'));
 app.use('/api/system',    require('./routes/system'));