diff --git a/graphene_django/forms/tests/test_mutation.py b/graphene_django/forms/tests/test_mutation.py
index 1892c33..e7dbbdf 100644
--- a/graphene_django/forms/tests/test_mutation.py
+++ b/graphene_django/forms/tests/test_mutation.py
@@ -5,7 +5,7 @@ from py.test import raises
 
 from graphene import ObjectType, Schema, String, Field
 from graphene_django import DjangoObjectType
-from graphene_django.tests.models import Film, FilmDetails, Pet
+from graphene_django.tests.models import Film, Pet
 
 from ...settings import graphene_settings
 from ..mutation import DjangoFormMutation, DjangoModelFormMutation
@@ -42,12 +42,6 @@ class FilmType(DjangoObjectType):
         fields = "__all__"
 
 
-class FilmDetailsType(DjangoObjectType):
-    class Meta:
-        model = FilmDetails
-        fields = "__all__"
-
-
 def test_needs_form_class():
     with raises(Exception) as exc:
 
@@ -185,15 +179,6 @@ class ModelFormMutationTests(TestCase):
         self.assertIn("client_mutation_id", PetMutation.Input._meta.fields)
         self.assertNotIn("id", PetMutation.Input._meta.fields)
 
-    def test_return_field_name_is_camelcased(self):
-        class PetMutation(DjangoModelFormMutation):
-            class Meta:
-                form_class = PetForm
-                model = FilmDetails
-
-        self.assertEqual(PetMutation._meta.model, FilmDetails)
-        self.assertEqual(PetMutation._meta.return_field_name, "filmDetails")
-
     def test_custom_return_field_name(self):
         class PetMutation(DjangoModelFormMutation):
             class Meta: