diff --git a/src/Microsoft.AspNet.Routing/RoutingServices.cs b/src/Microsoft.AspNet.Routing/RoutingServices.cs
index 4e088a526c..f7c09a69a9 100644
--- a/src/Microsoft.AspNet.Routing/RoutingServices.cs
+++ b/src/Microsoft.AspNet.Routing/RoutingServices.cs
@@ -2,6 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNet.Routing;
+using Microsoft.Framework.DependencyInjection.Extensions;
 
 namespace Microsoft.Framework.DependencyInjection
 {