diff --git a/fcm_django/api/rest_framework.py b/fcm_django/api/rest_framework.py
index <HASH>..<HASH> 100644
--- a/fcm_django/api/rest_framework.py
+++ b/fcm_django/api/rest_framework.py
@@ -91,6 +91,7 @@ class FCMDeviceSerializer(ModelSerializer, UniqueRegistrationSerializerMixin):
         model = FCMDevice
 
         extra_kwargs = {"id": {"read_only": False, "required": False}}
+        extra_kwargs.update(DeviceSerializerMixin.Meta.extra_kwargs)
 
 
 # Permissions
Fix issue #<I> - default active bug in DRF views