diff --git a/authentik/stages/authenticator_mobile/api/device.py b/authentik/stages/authenticator_mobile/api/device.py
index 12672278f..70fab32f1 100644
--- a/authentik/stages/authenticator_mobile/api/device.py
+++ b/authentik/stages/authenticator_mobile/api/device.py
@@ -39,7 +39,7 @@ class MobileDeviceInfoSerializer(PassiveSerializer):
 class MobileDeviceSerializer(DeviceSerializer):
     """Serializer for Mobile authenticator devices"""
 
-    last_checkin = MobileDeviceInfoSerializer(read_only=True)
+    state = MobileDeviceInfoSerializer(read_only=True)
 
     class Meta:
         model = MobileDevice