diff --git a/homeassistant/components/alarm_control_panel/alarmdotcom.py b/homeassistant/components/alarm_control_panel/alarmdotcom.py
index 8bf36e176e5..cd37fc6a828 100644
--- a/homeassistant/components/alarm_control_panel/alarmdotcom.py
+++ b/homeassistant/components/alarm_control_panel/alarmdotcom.py
@@ -39,7 +39,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     username = config.get(CONF_USERNAME)
     password = config.get(CONF_PASSWORD)
 
-    add_devices([AlarmDotCom(hass, name, code, username, password)])
+    add_devices([AlarmDotCom(hass, name, code, username, password)], True)
 
 
 class AlarmDotCom(alarm.AlarmControlPanel):
@@ -54,12 +54,17 @@ class AlarmDotCom(alarm.AlarmControlPanel):
         self._code = str(code) if code else None
         self._username = username
         self._password = password
+        self._state = STATE_UNKNOWN
 
     @property
     def should_poll(self):
         """No polling needed."""
         return True
 
+    def update(self):
+        """Fetch the latest state."""
+        self._state = self._alarm.state
+
     @property
     def name(self):
         """Return the name of the alarm."""
@@ -73,11 +78,11 @@ class AlarmDotCom(alarm.AlarmControlPanel):
     @property
     def state(self):
         """Return the state of the device."""
-        if self._alarm.state == 'Disarmed':
+        if self._state == 'Disarmed':
             return STATE_ALARM_DISARMED
-        elif self._alarm.state == 'Armed Stay':
+        elif self._state == 'Armed Stay':
             return STATE_ALARM_ARMED_HOME
-        elif self._alarm.state == 'Armed Away':
+        elif self._state == 'Armed Away':
             return STATE_ALARM_ARMED_AWAY
         else:
             return STATE_UNKNOWN