diff --git a/homeassistant/components/sia/alarm_control_panel.py b/homeassistant/components/sia/alarm_control_panel.py
index c59150266d9..149a0427ed0 100644
--- a/homeassistant/components/sia/alarm_control_panel.py
+++ b/homeassistant/components/sia/alarm_control_panel.py
@@ -52,6 +52,8 @@ ENTITY_DESCRIPTION_ALARM = SIAAlarmControlPanelEntityDescription(
         "CQ": STATE_ALARM_ARMED_AWAY,
         "CS": STATE_ALARM_ARMED_AWAY,
         "CF": STATE_ALARM_ARMED_CUSTOM_BYPASS,
+        "NP": STATE_ALARM_DISARMED,
+        "NO": STATE_ALARM_DISARMED,
         "OA": STATE_ALARM_DISARMED,
         "OB": STATE_ALARM_DISARMED,
         "OG": STATE_ALARM_DISARMED,
@@ -64,8 +66,6 @@ ENTITY_DESCRIPTION_ALARM = SIAAlarmControlPanelEntityDescription(
         "NE": STATE_ALARM_ARMED_CUSTOM_BYPASS,
         "NF": STATE_ALARM_ARMED_CUSTOM_BYPASS,
         "BR": PREVIOUS_STATE,
-        "NP": PREVIOUS_STATE,
-        "NO": PREVIOUS_STATE,
     },
 )