diff --git a/Microsoft.AspNet.NodeServices/HostingModels/HttpNodeInstance.cs b/Microsoft.AspNet.NodeServices/HostingModels/HttpNodeInstance.cs
index 6707527..d987df3 100644
--- a/Microsoft.AspNet.NodeServices/HostingModels/HttpNodeInstance.cs
+++ b/Microsoft.AspNet.NodeServices/HostingModels/HttpNodeInstance.cs
@@ -1,3 +1,5 @@
+using System;
+using System.Net;
 using System.Net.Http;
 using System.Text;
 using System.Text.RegularExpressions;