diff --git a/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs b/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs
index c5ef0fbf6e..9e0e42d8ae 100644
--- a/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs
+++ b/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs
@@ -110,7 +110,7 @@ namespace Microsoft.AspNet.Mvc.FunctionalTests
                     new TestApplicationEnvironment(applicationEnvironment, applicationName, applicationRoot));
 
                 var hostingEnvironment = new HostingEnvironment();
-                hostingEnvironment.Initialize(applicationRoot, config: null);
+                hostingEnvironment.Initialize(applicationRoot, new WebHostOptions());
                 services.AddInstance<IHostingEnvironment>(hostingEnvironment);
 
                 // Inject a custom assembly provider. Overrides AddMvc() because that uses TryAdd().