diff --git a/homeassistant/components/homewizard/sensor.py b/homeassistant/components/homewizard/sensor.py
index 84aa58f2d27..72b1027780a 100644
--- a/homeassistant/components/homewizard/sensor.py
+++ b/homeassistant/components/homewizard/sensor.py
@@ -35,21 +35,13 @@ from .entity import HomeWizardEntity
 PARALLEL_UPDATES = 1
 
 
-@dataclass
-class HomeWizardEntityDescriptionMixin:
-    """Mixin values for HomeWizard entities."""
-
-    has_fn: Callable[[Data], bool]
-    value_fn: Callable[[Data], StateType]
-
-
-@dataclass
-class HomeWizardSensorEntityDescription(
-    SensorEntityDescription, HomeWizardEntityDescriptionMixin
-):
+@dataclass(kw_only=True)
+class HomeWizardSensorEntityDescription(SensorEntityDescription):
     """Class describing HomeWizard sensor entities."""
 
     enabled_fn: Callable[[Data], bool] = lambda data: True
+    has_fn: Callable[[Data], bool]
+    value_fn: Callable[[Data], StateType]
 
 
 SENSORS: Final[tuple[HomeWizardSensorEntityDescription, ...]] = (
diff --git a/homeassistant/components/homewizard/switch.py b/homeassistant/components/homewizard/switch.py
index ed59963aa41..3f854aad320 100644
--- a/homeassistant/components/homewizard/switch.py
+++ b/homeassistant/components/homewizard/switch.py
@@ -23,23 +23,15 @@ from .entity import HomeWizardEntity
 from .helpers import homewizard_exception_handler
 
 
-@dataclass
-class HomeWizardEntityDescriptionMixin:
-    """Mixin values for HomeWizard entities."""
-
-    create_fn: Callable[[HWEnergyDeviceUpdateCoordinator], bool]
-    available_fn: Callable[[DeviceResponseEntry], bool]
-    is_on_fn: Callable[[DeviceResponseEntry], bool | None]
-    set_fn: Callable[[HomeWizardEnergy, bool], Awaitable[Any]]
-
-
-@dataclass
-class HomeWizardSwitchEntityDescription(
-    SwitchEntityDescription, HomeWizardEntityDescriptionMixin
-):
+@dataclass(kw_only=True)
+class HomeWizardSwitchEntityDescription(SwitchEntityDescription):
     """Class describing HomeWizard switch entities."""
 
+    available_fn: Callable[[DeviceResponseEntry], bool]
+    create_fn: Callable[[HWEnergyDeviceUpdateCoordinator], bool]
     icon_off: str | None = None
+    is_on_fn: Callable[[DeviceResponseEntry], bool | None]
+    set_fn: Callable[[HomeWizardEnergy, bool], Awaitable[Any]]
 
 
 SWITCHES = [