diff --git a/homeassistant/components/roomba/sensor.py b/homeassistant/components/roomba/sensor.py
index b167078c5f2..d99c657d7ad 100644
--- a/homeassistant/components/roomba/sensor.py
+++ b/homeassistant/components/roomba/sensor.py
@@ -125,9 +125,11 @@ SENSORS: list[RoombaSensorEntityDescription] = [
         icon="mdi:texture-box",
         native_unit_of_measurement=AREA_SQUARE_METERS,
         entity_category=EntityCategory.DIAGNOSTIC,
-        value_fn=lambda self: self.run_stats.get("sqft") * 9.29
-        if self.run_stats.get("sqft") is not None
-        else None,
+        value_fn=(
+            lambda self: self.run_stats.get("sqft") * 9.29
+            if self.run_stats.get("sqft") is not None
+            else None
+        ),
         suggested_display_precision=0,
         entity_registry_enabled_default=False,
     ),