diff --git a/homeassistant/components/zwave_js/discovery.py b/homeassistant/components/zwave_js/discovery.py
index 1aa70ea2fa0..2022258e6ea 100644
--- a/homeassistant/components/zwave_js/discovery.py
+++ b/homeassistant/components/zwave_js/discovery.py
@@ -226,6 +226,7 @@ DISCOVERY_SCHEMAS = [
         device_class_generic={"Thermostat"},
         device_class_specific={
             "Setpoint Thermostat",
+            "Unused",
         },
         primary_value=ZWaveValueDiscoverySchema(
             command_class={CommandClass.THERMOSTAT_SETPOINT},