diff --git a/xplora_ha/xplora_ha.py b/xplora_ha/xplora_ha.py
index a6c20d4..2b716ba 100755
--- a/xplora_ha/xplora_ha.py
+++ b/xplora_ha/xplora_ha.py
@@ -119,6 +119,12 @@ class XploraHa:
         for watch in self.xplora.watchs:
             self._debug(watch['ward'])
             base_sensor_entity = f"sensor.xplora_watch_{watch['ward']['name']}_"
+            self._publish_ha_state(
+                f"{base_sensor_entity}last_update",
+                {
+                    "state": time.time()
+                }
+            )
             for watch_state in WATCH_STATES:
                 function = getattr(self.xplora, watch_state['function'])
                 if 'params' in watch_state: