diff --git a/homeassistant/components/alarm_control_panel/arlo.py b/homeassistant/components/alarm_control_panel/arlo.py
index 6c3eba4ef0b..2dad3857c4d 100644
--- a/homeassistant/components/alarm_control_panel/arlo.py
+++ b/homeassistant/components/alarm_control_panel/arlo.py
@@ -68,8 +68,7 @@ class ArloBaseStation(AlarmControlPanel):
         """Return the state of the device."""
         return self._state
 
-    @asyncio.coroutine
-    def async_update(self):
+    def update(self):
         """Update the state of the device."""
         # PyArlo sometimes returns None for mode. So retry 3 times before
         # returning None.