diff --git a/homeassistant/components/switchbot_cloud/binary_sensor.py b/homeassistant/components/switchbot_cloud/binary_sensor.py
index 2a892206d8f0..316badc42f73 100644
--- a/homeassistant/components/switchbot_cloud/binary_sensor.py
+++ b/homeassistant/components/switchbot_cloud/binary_sensor.py
@@ -147,16 +147,16 @@ class SwitchBotCloudBinarySensor(SwitchBotCloudEntity, BinarySensorEntity):
         self.entity_description = description
         self._attr_unique_id = f"{device.device_id}_{description.key}"
 
-    @property
-    def is_on(self) -> bool | None:
+    def _set_attributes(self) -> None:
         """Set attributes from coordinator data."""
         if not self.coordinator.data:
-            return None
+            return
 
         if self.entity_description.value_fn:
-            return self.entity_description.value_fn(self.coordinator.data)
+            self._attr_is_on = self.entity_description.value_fn(self.coordinator.data)
+            return
 
-        return (
+        self._attr_is_on = (
             self.coordinator.data.get(self.entity_description.key)
             == self.entity_description.on_value
         )