diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 5e5accfb0..b160aeb39 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -1027,6 +1027,7 @@ void Thermostat::register_mqtt_ha_config(uint8_t hc_num) {
         Mqtt::register_mqtt_ha_sensor(hc_name, nullptr, F_(maxflowtemp), this->device_type(), "maxflowtemp", F_(degrees), F_(icontemperature));
         Mqtt::register_mqtt_ha_sensor(hc_name, nullptr, F_(roominfluence), this->device_type(), "roominfluence", F_(degrees), F_(icontemperature));
         Mqtt::register_mqtt_ha_sensor(hc_name, nullptr, F_(nofrosttemp), this->device_type(), "nofrosttemp", F_(degrees), F_(icontemperature));
+        Mqtt::register_mqtt_ha_sensor(hc_name, nullptr, F_(targetflowtemp), this->device_type(), "targetflowtemp", F_(degrees), F_(icontemperature));
         break;
     case EMS_DEVICE_FLAG_RC20_2:
         Mqtt::register_mqtt_ha_sensor(hc_name, nullptr, F_(daytemp), this->device_type(), "daytemp", F_(degrees), F_(icontemperature));