diff --git a/test/AutobahnTestServer/Startup.cs b/test/AutobahnTestServer/Startup.cs
index bc2bc28479..f0168a767e 100644
--- a/test/AutobahnTestServer/Startup.cs
+++ b/test/AutobahnTestServer/Startup.cs
@@ -7,6 +7,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.Hosting;
+using Microsoft.AspNet.Http;
 
 namespace AutobahnTestServer
 {