MQTT autodiscovery with multiple sensors

I try to smartify my Viessmann heater (WO1B) and have it discovered by MQTT autodiscovery.

I advertise binarl sensors to topic

homeassistant/binary_sensor/Vito/Vito_Status_Verdichter/config:
and other sensors to
homeassistant/sensor/Vito/Vito_Leistung/config

Both are of device class “power” so one is displayed with a flash icon and the other one with a plug.
But they show up in different groups. One goes to a group “binary_sensors”, the other one to “sensors”.

What can I do to have them all in the same group ?

Here are the configs I post to MQTT

topic:homeassistant/binary_sensor/Vito/Vito_Status_Verdichter/config:

{
  "name": "Vito_Status_Verdichter",
  "unique_id": "Vito_Vito_Status_Verdichter",
  "device": {
    "identifiers": "heater",
    "name": "Viessmann WO1B",
    "sw_version": "1.0",
    "model": "WO1B",
    "manufacturer": "Viessmann"
  },
  "device_class": "power",
  "unit_of_measurement": "",
  "state_topic": "homeassistant/binary_sensor/Vito/Vito_Status_Verdichter/state",
  "availability_topic": "homeassistant/binary_sensor/Vito/available",
  "payload_available": "online",
  "payload_not_available": "offline"
}

topic: homeassistant/sensor/Vito/Vito_Leistung/config

{
  "name": "Vito_Leistungsaufnahme",
  "unique_id": "Vito_Vito_Leistungsaufnahme",
  "device": {
    "identifiers": "heater",
    "name": "Viessmann WO1B",
    "sw_version": "1.0",
    "model": "WO1B",
    "manufacturer": "Viessmann"
  },
  "device_class": "power",
  "unit_of_measurement": "kW",
  "state_topic": "homeassistant/sensor/Vito/Vito_Leistungsaufnahme/state",
  "availability_topic": "homeassistant/sensor/Vito/available",
  "payload_available": "online",
  "payload_not_available": "offline"
}