From 656c901f7b26234f9ddad6fb7ded99ece065abe1 Mon Sep 17 00:00:00 2001
From: SukramJ <markus@mm-jankowski.de>
Date: Wed, 12 Feb 2020 19:12:26 +0100
Subject: [PATCH] Fix smoke detection for HomematicIP Cloud (#31753)

---
 homeassistant/components/homematicip_cloud/binary_sensor.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/homematicip_cloud/binary_sensor.py b/homeassistant/components/homematicip_cloud/binary_sensor.py
index f16dfc986f0..52a4583be46 100644
--- a/homeassistant/components/homematicip_cloud/binary_sensor.py
+++ b/homeassistant/components/homematicip_cloud/binary_sensor.py
@@ -227,7 +227,11 @@ class HomematicipSmokeDetector(HomematicipGenericDevice, BinarySensorDevice):
     @property
     def is_on(self) -> bool:
         """Return true if smoke is detected."""
-        return self._device.smokeDetectorAlarmType != SmokeDetectorAlarmType.IDLE_OFF
+        if self._device.smokeDetectorAlarmType:
+            return (
+                self._device.smokeDetectorAlarmType != SmokeDetectorAlarmType.IDLE_OFF
+            )
+        return False
 
 
 class HomematicipWaterDetector(HomematicipGenericDevice, BinarySensorDevice):