diff --git a/authentik/blueprints/tests/test_serializer_models.py b/authentik/blueprints/tests/test_serializer_models.py
index 718caa502..78dc55348 100644
--- a/authentik/blueprints/tests/test_serializer_models.py
+++ b/authentik/blueprints/tests/test_serializer_models.py
@@ -6,6 +6,7 @@ from django.test import TestCase
 
 from authentik.blueprints.v1.importer import is_model_allowed
 from authentik.lib.models import SerializerModel
+from authentik.providers.oauth2.models import RefreshToken
 
 
 class TestModels(TestCase):
@@ -21,6 +22,9 @@ def serializer_tester_factory(test_model: Type[SerializerModel]) -> Callable:
         model_class = test_model()
         self.assertTrue(isinstance(model_class, SerializerModel))
         self.assertIsNotNone(model_class.serializer)
+        if model_class.serializer.Meta().model == RefreshToken:
+            return
+        self.assertEqual(model_class.serializer.Meta().model, test_model)
 
     return tester
 
diff --git a/authentik/stages/invitation/models.py b/authentik/stages/invitation/models.py
index d5386c34e..ef6cb1cb2 100644
--- a/authentik/stages/invitation/models.py
+++ b/authentik/stages/invitation/models.py
@@ -73,12 +73,12 @@ class Invitation(SerializerModel, ExpiringModel):
 
     @property
     def serializer(self) -> Serializer:
-        from authentik.stages.consent.api import UserConsentSerializer
+        from authentik.stages.invitation.api import InvitationSerializer
 
-        return UserConsentSerializer
+        return InvitationSerializer
 
     def __str__(self):
-        return f"Invitation {self.invite_uuid.hex} created by {self.created_by}"
+        return f"Invitation {str(self.invite_uuid)} created by {self.created_by}"
 
     class Meta:
         verbose_name = _("Invitation")