diff --git a/homeassistant/components/devolo_home_network/entity.py b/homeassistant/components/devolo_home_network/entity.py
index e77c3f60803a7b..9d469ccfb16011 100644
--- a/homeassistant/components/devolo_home_network/entity.py
+++ b/homeassistant/components/devolo_home_network/entity.py
@@ -48,6 +48,7 @@ def __init__(
             identifiers={(DOMAIN, str(self.device.serial_number))},
             manufacturer="devolo",
             model=self.device.product,
+            model_id=self.device.mt_number,
             serial_number=self.device.serial_number,
             sw_version=self.device.firmware_version,
         )
diff --git a/tests/components/devolo_home_network/snapshots/test_init.ambr b/tests/components/devolo_home_network/snapshots/test_init.ambr
index 6d07bec1fa46c5..619a8ce11217a8 100644
--- a/tests/components/devolo_home_network/snapshots/test_init.ambr
+++ b/tests/components/devolo_home_network/snapshots/test_init.ambr
@@ -25,7 +25,7 @@
     }),
     'manufacturer': 'devolo',
     'model': 'dLAN pro 1200+ WiFi ac',
-    'model_id': None,
+    'model_id': '2730',
     'name': 'Mock Title',
     'name_by_user': None,
     'primary_config_entry': <ANY>,