diff --git a/pytest_plugin/collect.py b/pytest_plugin/collect.py
index ded17b2..1fbcd1f 100644
--- a/pytest_plugin/collect.py
+++ b/pytest_plugin/collect.py
@@ -26,10 +26,8 @@ class NewSemanalDjangoTestItem(YamlTestItem):
 
         installed_apps = self.parsed_test_data.get('installed_apps', None)
         if installed_apps is not None:
-            if not installed_apps:
-                installed_apps_as_str = '()'
-            else:
-                installed_apps_as_str = '(' + ','.join([repr(app) for app in installed_apps]) + ',)'
+            installed_apps += ['django.contrib.contenttypes']
+            installed_apps_as_str = '(' + ','.join([repr(app) for app in installed_apps]) + ',)'
 
             pyproject_toml_file = File(path='pyproject.toml',
                                        content='[tool.django-stubs]\ndjango_settings_module=\'mysettings\'')
diff --git a/test-data/typecheck/fields/test_generic_foreign_key.yml b/test-data/typecheck/fields/test_generic_foreign_key.yml
index a05f5e3..d0979a8 100644
--- a/test-data/typecheck/fields/test_generic_foreign_key.yml
+++ b/test-data/typecheck/fields/test_generic_foreign_key.yml
@@ -8,7 +8,6 @@
         Tag.objects.create(content_object=myuser)
         reveal_type(Tag().content_object)  # N: Revealed type is 'Union[Any, None]'
     installed_apps:
-        - django.contrib.contenttypes
         - myapp
     files:
         -   path: myapp/__init__.py
diff --git a/test-data/typecheck/fields/test_related.yml b/test-data/typecheck/fields/test_related.yml
index e22a60c..9263028 100644
--- a/test-data/typecheck/fields/test_related.yml
+++ b/test-data/typecheck/fields/test_related.yml
@@ -25,7 +25,6 @@
         reveal_type(book.publisher_id)  # N: Revealed type is 'builtins.int*'
         reveal_type(book.owner_id)  # N: Revealed type is 'builtins.int*'
     installed_apps:
-        - django.contrib.contenttypes
         - django.contrib.auth
         - myapp
     files:
diff --git a/test-data/typecheck/test_config.yml b/test-data/typecheck/test_config.yml
index b9698f4..1f9df4f 100644
--- a/test-data/typecheck/test_config.yml
+++ b/test-data/typecheck/test_config.yml
@@ -30,7 +30,6 @@
         mymodel = MyModel(user_id=1)
         reveal_type(mymodel.id)  # N: Revealed type is 'builtins.int*'
     installed_apps:
-        - django.contrib.contenttypes
         - django.contrib.auth
         - myapp
     files: