diff --git a/lib/extension/homeassistant.ts b/lib/extension/homeassistant.ts
index 84a2f1d401..59d9bf9018 100644
--- a/lib/extension/homeassistant.ts
+++ b/lib/extension/homeassistant.ts
@@ -154,7 +154,7 @@ const NUMERIC_DISCOVERY_LOOKUP: {[s: string]: KeyValue} = {
     },
     distance: {device_class: "distance", state_class: "measurement"},
     duration: {entity_category: "config", icon: "mdi:timer"},
-    eco2: {device_class: "carbon_dioxide", state_class: "measurement"},
+    eco2: {device_class: "volatile_organic_compounds_parts", state_class: "measurement"},
     eco_temperature: {entity_category: "config", icon: "mdi:thermometer"},
     energy: {device_class: "energy", state_class: "total_increasing"},
     external_temperature_input: {device_class: "temperature", icon: "mdi:thermometer"},