diff --git a/testproj/testproj/urls.py b/testproj/testproj/urls.py
index 4c023b3..070b75d 100644
--- a/testproj/testproj/urls.py
+++ b/testproj/testproj/urls.py
@@ -51,6 +51,7 @@ urlpatterns = [
     url(r'^swagger(?P<format>.json|.yaml)$', SchemaView.without_ui(cache_timeout=0), name='schema-json'),
     url(r'^swagger/$', SchemaView.with_ui('swagger', cache_timeout=0), name='schema-swagger-ui'),
     url(r'^redoc/$', SchemaView.with_ui('redoc', cache_timeout=0), name='schema-redoc'),
+    url(r'^redoc-old/$', SchemaView.with_ui('redoc-old', cache_timeout=0), name='schema-redoc-old'),
 
     url(r'^cached/swagger(?P<format>.json|.yaml)$', SchemaView.without_ui(cache_timeout=None), name='cschema-json'),
     url(r'^cached/swagger/$', SchemaView.with_ui('swagger', cache_timeout=None), name='cschema-swagger-ui'),
diff --git a/tests/test_renderer_settings.py b/tests/test_renderer_settings.py
index 3b6df9e..a6caf03 100644
--- a/tests/test_renderer_settings.py
+++ b/tests/test_renderer_settings.py
@@ -25,8 +25,8 @@ def test_validator_url(swagger_settings, swagger):
     swagger_settings['VALIDATOR_URL'] = None
     _check_swagger_setting(swagger, 'validatorUrl', None)
 
-    swagger_settings['VALIDATOR_URL'] = 'not none'
-    _check_swagger_setting(swagger, 'validatorUrl', 'not none')
+    swagger_settings['VALIDATOR_URL'] = 'http://not.none/'
+    _check_swagger_setting(swagger, 'validatorUrl', 'http://not.none/')
 
     with pytest.raises(KeyError):
         swagger_settings['VALIDATOR_URL'] = ''