diff --git a/homeassistant/components/sia/alarm_control_panel.py b/homeassistant/components/sia/alarm_control_panel.py
index 6a86ce81445..ef2ecc7aa23 100644
--- a/homeassistant/components/sia/alarm_control_panel.py
+++ b/homeassistant/components/sia/alarm_control_panel.py
@@ -123,7 +123,7 @@ class SIAAlarmControlPanel(SIABaseEntity, AlarmControlPanelEntity):
         """
         new_state = None
         if sia_event.code:
-            new_state = self.entity_description.code_consequences[sia_event.code]
+            new_state = self.entity_description.code_consequences.get(sia_event.code)
         if new_state is None:
             return False
         _LOGGER.debug("New state will be %s", new_state)
diff --git a/homeassistant/components/sia/binary_sensor.py b/homeassistant/components/sia/binary_sensor.py
index 715fa26eee9..db0845473fd 100644
--- a/homeassistant/components/sia/binary_sensor.py
+++ b/homeassistant/components/sia/binary_sensor.py
@@ -132,7 +132,7 @@ class SIABinarySensor(SIABaseEntity, BinarySensorEntity):
         """
         new_state = None
         if sia_event.code:
-            new_state = self.entity_description.code_consequences[sia_event.code]
+            new_state = self.entity_description.code_consequences.get(sia_event.code)
         if new_state is None:
             return False
         _LOGGER.debug("New state will be %s", new_state)