diff --git a/source/_components/homekit.markdown b/source/_components/homekit.markdown
index 74bb8a7c48a..b1ea53ff54d 100644
--- a/source/_components/homekit.markdown
+++ b/source/_components/homekit.markdown
@@ -272,6 +272,7 @@ The following components are currently supported:
 | sensor | TemperatureSensor | All sensors that have `Celsius` or `Fahrenheit` as their `unit_of_measurement` or `temperature` as their `device_class`. |
 | sensor | HumiditySensor | All sensors that have `%` as their `unit_of_measurement` and `humidity` as their `device_class`. |
 | sensor | AirQualitySensor | All sensors that have `pm25` as part of their `entity_id` or `pm25` as their `device_class` |
+| sensor | CarbonMonoxideSensor | All sensors that have `co` as their `device_class` |
 | sensor | CarbonDioxideSensor | All sensors that have `co2` as part of their `entity_id` or `co2` as their `device_class` |
 | sensor | LightSensor | All sensors that have `lm` or `lx` as their `unit_of_measurement` or `illuminance` as their `device_class` |
 | switch | Switch | Represented as a switch by default but can be changed by using `type` within `entity_config`. |