diff --git a/custom_components/browser_mod/light.py b/custom_components/browser_mod/light.py
index 321339d..bae91dc 100644
--- a/custom_components/browser_mod/light.py
+++ b/custom_components/browser_mod/light.py
@@ -16,6 +16,7 @@ class BrowserModLight(Light, BrowserModEntity):
 
     def __init__(self, hass, connection, deviceID, alias=None):
         super().__init__(hass, connection, deviceID, alias)
+        self.last_seen = None
 
     def updated(self):
         self.last_seen = datetime.now()
diff --git a/custom_components/browser_mod/media_player.py b/custom_components/browser_mod/media_player.py
index 6a0fcaa..538d7f5 100644
--- a/custom_components/browser_mod/media_player.py
+++ b/custom_components/browser_mod/media_player.py
@@ -28,6 +28,7 @@ class BrowserModPlayer(MediaPlayerDevice, BrowserModEntity):
 
     def __init__(self, hass, connection, deviceID, alias=None):
         super().__init__(hass, connection, deviceID, alias)
+        self.last_seen = None
 
     def updated(self):
         self.schedule_update_ha_state()