diff --git a/tests/test_device.py b/tests/test_device.py
index 65c3b21c..67d94d6a 100644
--- a/tests/test_device.py
+++ b/tests/test_device.py
@@ -130,7 +130,6 @@ def test_physical_properties():
         'model': 'foo',
         'receiver_id': None,
         'serial_number': 'foo-bar',
-        'system_uuid': None,
         'transfer_state': TransferState.Initial
     }