diff --git a/graphene_django/tests/test_converter.py b/graphene_django/tests/test_converter.py
index c819a65..00467b4 100644
--- a/graphene_django/tests/test_converter.py
+++ b/graphene_django/tests/test_converter.py
@@ -271,7 +271,6 @@ def test_should_manytoone_convert_connectionorlist():
     assert isinstance(dynamic_field.type, NonNull)
     assert isinstance(dynamic_field.type.of_type, graphene.List)
     assert isinstance(dynamic_field.type.of_type.of_type, NonNull)
-    assert isinstance(dynamic_field.type.of_type.of_type, NonNull)
     assert dynamic_field.type.of_type.of_type.of_type == A