diff --git a/custom_components/mammotion/sensor.py b/custom_components/mammotion/sensor.py
index 3141c41..5c6ccf7 100644
--- a/custom_components/mammotion/sensor.py
+++ b/custom_components/mammotion/sensor.py
@@ -62,7 +62,7 @@ class MammotionSensorEntityDescription(SensorEntityDescription):
         device_class=None,
         native_unit_of_measurement=None,
         value_fn=lambda mower_data: camera_brightness(
-            mower_data.report_data.work.vision_info.brightness
+            mower_data.report_data.vision_info.brightness
         ),
     ),
 )