diff --git a/homeassistant/components/nut/sensor.py b/homeassistant/components/nut/sensor.py
index c7865f8c0f1..db485734777 100644
--- a/homeassistant/components/nut/sensor.py
+++ b/homeassistant/components/nut/sensor.py
@@ -133,6 +133,7 @@ STATE_TYPES = {
     "TRIM": "Trimming Voltage",
     "BOOST": "Boosting Voltage",
     "FSD": "Forced Shutdown",
+    "ALARM": "Alarm",
 }
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(