diff --git a/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs b/test/Microsoft.AspNet.Mvc.FunctionalTests/MvcTestFixture.cs
index aaa78699d4..703f00e61c 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, new WebHostOptions());
+                hostingEnvironment.Initialize(applicationRoot, new WebHostOptions(), configuration: null);
                 services.AddSingleton<IHostingEnvironment>(hostingEnvironment);
 
                 // Inject a custom assembly provider. Overrides AddMvc() because that uses TryAdd().