diff --git a/tests/const.py b/tests/const.py
index e3fc077..0237bd3 100644
--- a/tests/const.py
+++ b/tests/const.py
@@ -231,6 +231,7 @@
             "locked": False,
             "active": True,
             "power": "510",
+            "duty": "50",
             "mode": "auto",
         },
         {