diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/field_attributes.py b/custom_components/bluetti_bt/bluetti_bt_lib/field_attributes.py
index cedeaf9..79ad4b4 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/field_attributes.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/field_attributes.py
@@ -22,7 +22,7 @@ class FieldAttributes:
     unit_of_measurement: str | None = None
     device_class: str | None = None
     state_class: str | None = None
-    options: Enum
+    options: Enum | None = None
 
 
 @dataclass(frozen=True)