diff --git a/homeassistant/components/modbus/modbus.py b/homeassistant/components/modbus/modbus.py index 0ea4c57d4d9..20083bb3d1c 100644 --- a/homeassistant/components/modbus/modbus.py +++ b/homeassistant/components/modbus/modbus.py @@ -358,7 +358,7 @@ class ModbusHub: return True def _pymodbus_call( - self, unit: int, address: int, value: int | list[int], use_call: str + self, unit: int | None, address: int, value: int | list[int], use_call: str ) -> ModbusResponse: """Call sync. pymodbus.""" kwargs = {"unit": unit} if unit else {}