diff --git a/homeassistant/components/device_tracker/services.yaml b/homeassistant/components/device_tracker/services.yaml
index 63907f7457b..dc573ae0275 100644
--- a/homeassistant/components/device_tracker/services.yaml
+++ b/homeassistant/components/device_tracker/services.yaml
@@ -9,7 +9,7 @@ see:
       example: 'FF:FF:FF:FF:FF:FF'
 
     dev_id:
-      description: Id of device (find id in tracked_devices.yaml)
+      description: Id of device (find id in known_devices.yaml)
       example: 'phonedave'
 
     host_name: