diff --git a/Resources/Prototypes/Entities/Structures/Wallmounts/air_alarm.yml b/Resources/Prototypes/Entities/Structures/Wallmounts/air_alarm.yml
index cbd55c1f7c..1b82ae3696 100644
--- a/Resources/Prototypes/Entities/Structures/Wallmounts/air_alarm.yml
+++ b/Resources/Prototypes/Entities/Structures/Wallmounts/air_alarm.yml
@@ -28,6 +28,7 @@
       WaterVapor: danger
       Miasma: danger
       NitrousOxide: danger
+      Frezon: danger
   - type: AtmosAlarmable
     alarmedBy: ["AirAlarm"]
   - type: AtmosDevice