diff --git a/homeassistant/components/xiaomi_miio/alarm_control_panel.py b/homeassistant/components/xiaomi_miio/alarm_control_panel.py
index be7daf5e077..b5057a4a3dd 100644
--- a/homeassistant/components/xiaomi_miio/alarm_control_panel.py
+++ b/homeassistant/components/xiaomi_miio/alarm_control_panel.py
@@ -51,6 +51,7 @@ async def async_setup_entry(
 class XiaomiGatewayAlarm(AlarmControlPanelEntity):
     """Representation of the XiaomiGatewayAlarm."""
 
+    _attr_icon = "mdi:shield-home"
     _attr_supported_features = AlarmControlPanelEntityFeature.ARM_AWAY
 
     def __init__(
@@ -58,50 +59,13 @@ class XiaomiGatewayAlarm(AlarmControlPanelEntity):
     ):
         """Initialize the entity."""
         self._gateway = gateway_device
-        self._name = gateway_name
-        self._gateway_device_id = gateway_device_id
-        self._unique_id = f"{model}-{mac_address}"
-        self._icon = "mdi:shield-home"
-        self._available = None
-        self._state = None
-
-    @property
-    def unique_id(self):
-        """Return an unique ID."""
-        return self._unique_id
-
-    @property
-    def device_id(self):
-        """Return the device id of the gateway."""
-        return self._gateway_device_id
-
-    @property
-    def device_info(self) -> DeviceInfo:
-        """Return the device info of the gateway."""
-        return DeviceInfo(
-            identifiers={(DOMAIN, self._gateway_device_id)},
+        self._attr_name = gateway_name
+        self._attr_unique_id = f"{model}-{mac_address}"
+        self._attr_available = False
+        self._attr_device_info = DeviceInfo(
+            identifiers={(DOMAIN, gateway_device_id)},
         )
 
-    @property
-    def name(self):
-        """Return the name of this entity, if any."""
-        return self._name
-
-    @property
-    def icon(self):
-        """Return the icon to use for device if any."""
-        return self._icon
-
-    @property
-    def available(self):
-        """Return true when state is known."""
-        return self._available
-
-    @property
-    def state(self):
-        """Return the state of the device."""
-        return self._state
-
     async def _try_command(self, mask_error, func, *args, **kwargs):
         """Call a device command handling error messages."""
         try:
@@ -129,22 +93,22 @@ class XiaomiGatewayAlarm(AlarmControlPanelEntity):
         try:
             state = await self.hass.async_add_executor_job(self._gateway.alarm.status)
         except DeviceException as ex:
-            if self._available:
-                self._available = False
+            if self._attr_available:
+                self._attr_available = False
                 _LOGGER.error("Got exception while fetching the state: %s", ex)
 
             return
 
         _LOGGER.debug("Got new state: %s", state)
 
-        self._available = True
+        self._attr_available = True
 
         if state == XIAOMI_STATE_ARMED_VALUE:
-            self._state = STATE_ALARM_ARMED_AWAY
+            self._attr_state = STATE_ALARM_ARMED_AWAY
         elif state == XIAOMI_STATE_DISARMED_VALUE:
-            self._state = STATE_ALARM_DISARMED
+            self._attr_state = STATE_ALARM_DISARMED
         elif state == XIAOMI_STATE_ARMING_VALUE:
-            self._state = STATE_ALARM_ARMING
+            self._attr_state = STATE_ALARM_ARMING
         else:
             _LOGGER.warning(
                 "New state (%s) doesn't match expected values: %s/%s/%s",
@@ -153,6 +117,6 @@ class XiaomiGatewayAlarm(AlarmControlPanelEntity):
                 XIAOMI_STATE_DISARMED_VALUE,
                 XIAOMI_STATE_ARMING_VALUE,
             )
-            self._state = None
+            self._attr_state = None
 
-        _LOGGER.debug("State value: %s", self._state)
+        _LOGGER.debug("State value: %s", self._attr_state)