diff --git a/homeassistant/components/gios/sensor.py b/homeassistant/components/gios/sensor.py
index feb3f90a313..cabbb671aed 100644
--- a/homeassistant/components/gios/sensor.py
+++ b/homeassistant/components/gios/sensor.py
@@ -59,7 +59,6 @@ SENSOR_TYPES: tuple[GiosSensorEntityDescription, ...] = (
     GiosSensorEntityDescription(
         key=ATTR_AQI,
         name="AQI",
-        device_class=SensorDeviceClass.AQI,
         value=None,
     ),
     GiosSensorEntityDescription(
diff --git a/tests/components/gios/test_sensor.py b/tests/components/gios/test_sensor.py
index f7475b1ef0f..9f88b247983 100644
--- a/tests/components/gios/test_sensor.py
+++ b/tests/components/gios/test_sensor.py
@@ -162,7 +162,6 @@ async def test_sensor(hass):
     assert state.state == "dobry"
     assert state.attributes.get(ATTR_ATTRIBUTION) == ATTRIBUTION
     assert state.attributes.get(ATTR_STATION) == "Test Name 1"
-    assert state.attributes.get(ATTR_DEVICE_CLASS) == SensorDeviceClass.AQI
     assert state.attributes.get(ATTR_STATE_CLASS) is None
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) is None