diff --git a/services/notifikasi-wa.service.js b/services/notifikasi-wa.service.js
index 6e62092..b44ac30 100644
--- a/services/notifikasi-wa.service.js
+++ b/services/notifikasi-wa.service.js
@@ -393,7 +393,7 @@ class NotifikasiWaService {
             const now = new Date();
             const year = now.getFullYear();
             const reminderAt = new Date(deviceReminder[0].reminder_at);
-            const deviceName = new Date(deviceReminder[0].device_name);
+            const deviceName = deviceReminder[0].device_name ?? '-';
 
             // 🔹 ambil bulan & jam dalam timezone server
             const nowParts = new Intl.DateTimeFormat('en-US', {