diff --git a/homeassistant/components/seventeentrack/sensor.py b/homeassistant/components/seventeentrack/sensor.py
index ff17d1a4c54..8a242b7737d 100644
--- a/homeassistant/components/seventeentrack/sensor.py
+++ b/homeassistant/components/seventeentrack/sensor.py
@@ -232,7 +232,8 @@ class SeventeenTrackPackageSensor(Entity):
             return
 
         # If the user has elected to not see delivered packages and one gets
-        # delivered, post a notification and delete the entity:
+        # delivered, post a notification, remove the entity from the UI, and
+        # delete it from the entity registry:
         if package.status == VALUE_DELIVERED and not self._data.show_delivered:
             _LOGGER.info('Package delivered: %s', self._tracking_number)
             self.hass.components.persistent_notification.create(
@@ -245,6 +246,9 @@ class SeventeenTrackPackageSensor(Entity):
                 title=NOTIFICATION_DELIVERED_TITLE,
                 notification_id=NOTIFICATION_DELIVERED_ID_SCAFFOLD.format(
                     self._tracking_number))
+
+            reg = self.hass.helpers.entity_registry.async_get_registry()
+            self.hass.async_create_task(reg.async_remove(self.entity_id))
             self.hass.async_create_task(self.async_remove())
             return