diff --git a/custom_components/sws12500/sensors_wslink.py b/custom_components/sws12500/sensors_wslink.py
index 91fe1a3..54f2329 100644
--- a/custom_components/sws12500/sensors_wslink.py
+++ b/custom_components/sws12500/sensors_wslink.py
@@ -538,7 +538,7 @@ SENSOR_TYPES_WSLINK: tuple[WeatherSensorEntityDescription, ...] = (
         device_class=SensorDeviceClass.ENUM,
         options=list(VOCLevel),
         icon="mdi:air-filter",
-        value_fn=voc_level_to_text(data),
+        value_fn=voc_level_to_text,
     ),
     WeatherSensorEntityDescription(
         key=T9_BATTERY,