diff --git a/test/Microsoft.AspNet.Mvc.Core.Test/Filters/AuthorizeAttributeTests.cs b/test/Microsoft.AspNet.Mvc.Core.Test/Filters/AuthorizeAttributeTests.cs
index 00d8536a03..6d3c1b74f8 100644
--- a/test/Microsoft.AspNet.Mvc.Core.Test/Filters/AuthorizeAttributeTests.cs
+++ b/test/Microsoft.AspNet.Mvc.Core.Test/Filters/AuthorizeAttributeTests.cs
@@ -18,6 +18,7 @@
 using System;
 using System.Linq;
 using System.Threading.Tasks;
+using Microsoft.AspNet.DependencyInjection;
 using Microsoft.AspNet.Mvc;
 using Microsoft.AspNet.Security.Authorization;
 using Moq;