diff --git a/homeassistant/components/tado/binary_sensor.py b/homeassistant/components/tado/binary_sensor.py
index 65c0b84906c..0e8cbd1d175 100644
--- a/homeassistant/components/tado/binary_sensor.py
+++ b/homeassistant/components/tado/binary_sensor.py
@@ -34,19 +34,12 @@ from .entity import TadoDeviceEntity, TadoZoneEntity
 _LOGGER = logging.getLogger(__name__)
 
 
-@dataclass(frozen=True)
-class TadoBinarySensorEntityDescriptionMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class TadoBinarySensorEntityDescription(BinarySensorEntityDescription):
+    """Describes Tado binary sensor entity."""
 
     state_fn: Callable[[Any], bool]
 
-
-@dataclass(frozen=True)
-class TadoBinarySensorEntityDescription(
-    BinarySensorEntityDescription, TadoBinarySensorEntityDescriptionMixin
-):
-    """Describes Tado binary sensor entity."""
-
     attributes_fn: Callable[[Any], dict[Any, StateType]] | None = None
 
 
diff --git a/homeassistant/components/tado/sensor.py b/homeassistant/components/tado/sensor.py
index 451a52f350f..f8572ac3bc8 100644
--- a/homeassistant/components/tado/sensor.py
+++ b/homeassistant/components/tado/sensor.py
@@ -37,19 +37,12 @@ from .entity import TadoHomeEntity, TadoZoneEntity
 _LOGGER = logging.getLogger(__name__)
 
 
-@dataclass(frozen=True)
-class TadoSensorEntityDescriptionMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class TadoSensorEntityDescription(SensorEntityDescription):
+    """Describes Tado sensor entity."""
 
     state_fn: Callable[[Any], StateType]
 
-
-@dataclass(frozen=True)
-class TadoSensorEntityDescription(
-    SensorEntityDescription, TadoSensorEntityDescriptionMixin
-):
-    """Describes Tado sensor entity."""
-
     attributes_fn: Callable[[Any], dict[Any, StateType]] | None = None
     data_category: str | None = None