diff --git a/amr2mqtt/rootfs/amr2mqtt/amr2mqtt.py b/amr2mqtt/rootfs/amr2mqtt/amr2mqtt.py
index e7007d1..21e5d71 100644
--- a/amr2mqtt/rootfs/amr2mqtt/amr2mqtt.py
+++ b/amr2mqtt/rootfs/amr2mqtt/amr2mqtt.py
@@ -307,7 +307,7 @@ def send_discovery_messages():
                 category=CATEGORY_DIAGNOSTIC,
             )
             last_seen["device_class"] = "timestamp"
-            last_seen["name"] = "Last Seen"
+            last_seen["name"] = f"{device_name} Last Seen"
             publish_sensor_discovery(
                 meter_id=meter_id,
                 device=device,