diff --git a/tests/components/mqtt/test_device_tracker.py b/tests/components/mqtt/test_device_tracker.py
index 37a7daabc34..04069342695 100644
--- a/tests/components/mqtt/test_device_tracker.py
+++ b/tests/components/mqtt/test_device_tracker.py
@@ -4,6 +4,7 @@ from unittest.mock import patch
 import pytest
 
 from homeassistant.components import device_tracker, mqtt
+from homeassistant.components.device_tracker.legacy import Device
 from homeassistant.components.mqtt.const import DOMAIN as MQTT_DOMAIN
 from homeassistant.const import STATE_HOME, STATE_NOT_HOME, STATE_UNKNOWN, Platform
 from homeassistant.core import HomeAssistant
@@ -589,7 +590,7 @@ async def test_setting_blocked_attribute_via_mqtt_json_message(
 
 
 async def test_setup_with_modern_schema(
-    hass: HomeAssistant, mock_device_tracker_conf
+    hass: HomeAssistant, mock_device_tracker_conf: list[Device]
 ) -> None:
     """Test setup using the modern schema."""
     dev_id = "jan"