diff --git a/custom_components/hvcgroep/sensor.py b/custom_components/hvcgroep/sensor.py
index 4bc6d05..9b6b4fa 100644
--- a/custom_components/hvcgroep/sensor.py
+++ b/custom_components/hvcgroep/sensor.py
@@ -232,7 +232,7 @@ def icon(self):
         return self._icon
 
     @property
-    def device_state_attributes(self):
+    def extra_state_attributes(self):
         """Return the state attributes of this device."""
         return {
             "day": self._day,
@@ -264,4 +264,4 @@ async def async_update(self):
                         self._state = None
                         self._day = None
 
-            _LOGGER.debug("Device: {} State: {}".format(self._name, self._state))
\ No newline at end of file
+            _LOGGER.debug("Device: {} State: {}".format(self._name, self._state))