diff --git a/custom_components/teslemetry/sensor.py b/custom_components/teslemetry/sensor.py
index 49655c5..8aa6f69 100644
--- a/custom_components/teslemetry/sensor.py
+++ b/custom_components/teslemetry/sensor.py
@@ -1175,7 +1175,8 @@ def _async_update_attrs(self) -> None:
     def _async_value_from_stream(self, value) -> None:
         """Update the value of the entity."""
         self._attr_available = True
-        self._attr_native_value = self.entity_description.value_fn(auto_type(value))
+        if value := auto_type(value) is not None:
+            self._attr_native_value = self.entity_description.value_fn(value)
 
 
 class TeslemetryVehicleTimeSensorEntity(TeslemetryVehicleEntity, SensorEntity):