diff --git a/homeassistant/components/hvv_departures/sensor.py b/homeassistant/components/hvv_departures/sensor.py
index 0a516529386..e2de1758dd5 100644
--- a/homeassistant/components/hvv_departures/sensor.py
+++ b/homeassistant/components/hvv_departures/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.util import Throttle
 from homeassistant.util.dt import get_time_zone, utcnow
 
-from .const import ATTRIBUTION, CONF_STATION, DOMAIN, MANUFACTURER
+from .const import ATTRIBUTION, CONF_REAL_TIME, CONF_STATION, DOMAIN, MANUFACTURER
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=1)
 MAX_LIST = 20
@@ -90,7 +90,7 @@ class HVVDepartureSensor(SensorEntity):
             },
             "maxList": MAX_LIST,
             "maxTimeOffset": MAX_TIME_OFFSET,
-            "useRealtime": self.config_entry.options.get("realtime", False),
+            "useRealtime": self.config_entry.options.get(CONF_REAL_TIME, False),
         }
 
         if "filter" in self.config_entry.options: