diff --git a/homeassistant/components/hvv_departures/sensor.py b/homeassistant/components/hvv_departures/sensor.py
index 7cfd392808b..c58ae6e3931 100644
--- a/homeassistant/components/hvv_departures/sensor.py
+++ b/homeassistant/components/hvv_departures/sensor.py
@@ -60,7 +60,6 @@ class HVVDepartureSensor(SensorEntity):
     _attr_icon = ICON
     _attr_translation_key = "departures"
     _attr_has_entity_name = True
-    _attr_extra_state_attributes = {}
     _attr_available = False
 
     def __init__(self, hass, config_entry, session, hub):
@@ -68,6 +67,7 @@ class HVVDepartureSensor(SensorEntity):
         self.config_entry = config_entry
         self.station_name = self.config_entry.data[CONF_STATION]["name"]
         self._last_error = None
+        self._attr_extra_state_attributes = {}
 
         self.gti = hub.gti