diff --git a/homeassistant/components/dovado/sensor.py b/homeassistant/components/dovado/sensor.py
index 4de20bf86e8..5da248c414a 100644
--- a/homeassistant/components/dovado/sensor.py
+++ b/homeassistant/components/dovado/sensor.py
@@ -30,18 +30,13 @@ SENSOR_NETWORK = "network"
 SENSOR_SMS_UNREAD = "sms"
 
 
-@dataclass(frozen=True)
-class DovadoRequiredKeysMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class DovadoSensorEntityDescription(SensorEntityDescription):
+    """Describes Dovado sensor entity."""
 
     identifier: str
 
 
-@dataclass(frozen=True)
-class DovadoSensorEntityDescription(SensorEntityDescription, DovadoRequiredKeysMixin):
-    """Describes Dovado sensor entity."""
-
-
 SENSOR_TYPES: tuple[DovadoSensorEntityDescription, ...] = (
     DovadoSensorEntityDescription(
         identifier=SENSOR_NETWORK,