diff --git a/polymorphic/tests/test_orm.py b/polymorphic/tests/test_orm.py
index a0fd1e8..84da2a5 100644
--- a/polymorphic/tests/test_orm.py
+++ b/polymorphic/tests/test_orm.py
@@ -481,21 +481,22 @@ class PolymorphicTests(TransactionTestCase):
     def test_foreignkey_field(self):
         self.create_model2abcd()
 
-        object2a = Model2A.base_objects.get(field1="C1")
+        object2a = Model2A.objects.get(field1="C1")
         self.assertEqual(object2a.model2b.__class__, Model2B)
 
-        object2b = Model2B.base_objects.get(field1="C1")
+        object2b = Model2B.objects.get(field1="C1")
         self.assertEqual(object2b.model2c.__class__, Model2C)
 
     def test_onetoone_field(self):
         self.create_model2abcd()
 
+        # FIXME: We should not use base_objects here.
         a = Model2A.base_objects.get(field1="C1")
         b = One2OneRelatingModelDerived.objects.create(
             one2one=a, field1="f1", field2="f2"
         )
 
-        # this result is basically wrong, probably due to Django cacheing (we used base_objects), but should not be a problem
+        # FIXME: this result is basically wrong, probably due to Django cacheing (we used base_objects), but should not be a problem
         self.assertEqual(b.one2one.__class__, Model2A)
         self.assertEqual(b.one2one_id, b.one2one.id)
 
@@ -808,7 +809,6 @@ class PolymorphicTests(TransactionTestCase):
 
         self.assertIs(type(ModelWithMyManager.objects), MyManager)
         self.assertIs(type(ModelWithMyManager._default_manager), MyManager)
-        self.assertIs(type(ModelWithMyManager.base_objects), models.Manager)
 
     def test_user_defined_manager_as_secondary(self):
         self.create_model2abcd()
@@ -831,7 +831,6 @@ class PolymorphicTests(TransactionTestCase):
         self.assertIs(
             type(ModelWithMyManagerNoDefault._default_manager), PolymorphicManager
         )
-        self.assertIs(type(ModelWithMyManagerNoDefault.base_objects), models.Manager)
 
     def test_user_objects_manager_as_secondary(self):
         self.create_model2abcd()
@@ -841,7 +840,6 @@ class PolymorphicTests(TransactionTestCase):
         self.assertIs(type(ModelWithMyManagerDefault.my_objects), MyManager)
         self.assertIs(type(ModelWithMyManagerDefault.objects), PolymorphicManager)
         self.assertIs(type(ModelWithMyManagerDefault._default_manager), MyManager)
-        self.assertIs(type(ModelWithMyManagerDefault.base_objects), models.Manager)
 
     def test_user_defined_queryset_as_manager(self):
         self.create_model2abcd()
@@ -864,7 +862,6 @@ class PolymorphicTests(TransactionTestCase):
             type(ModelWithMyManager2._default_manager).__name__,
             "PolymorphicManagerFromMyManagerQuerySet",
         )
-        self.assertIs(type(ModelWithMyManager2.base_objects), models.Manager)
 
     def test_manager_inheritance(self):
         # by choice of MRO, should be MyManager from MROBase1.