diff --git a/homeassistant/components/sia/alarm_control_panel.py b/homeassistant/components/sia/alarm_control_panel.py
index 2b2a32ca67d68e2be354cea204a7e623334fa20c..04d52b7a595c18c8aba8c2afbc98a6e67f2e2762 100644
--- a/homeassistant/components/sia/alarm_control_panel.py
+++ b/homeassistant/components/sia/alarm_control_panel.py
@@ -45,6 +45,7 @@ ENTITY_DESCRIPTION_ALARM = SIAAlarmControlPanelEntityDescription(
         "JA": STATE_ALARM_TRIGGERED,
         "TA": STATE_ALARM_TRIGGERED,
         "BA": STATE_ALARM_TRIGGERED,
+        "HA": STATE_ALARM_TRIGGERED,
         "CA": STATE_ALARM_ARMED_AWAY,
         "CB": STATE_ALARM_ARMED_AWAY,
         "CG": STATE_ALARM_ARMED_AWAY,