diff --git a/src/Microsoft.AspNet.TestHost/Properties/AssemblyInfo.cs b/src/Microsoft.AspNet.TestHost/Properties/AssemblyInfo.cs
index 726e557599..23d1e15e16 100644
--- a/src/Microsoft.AspNet.TestHost/Properties/AssemblyInfo.cs
+++ b/src/Microsoft.AspNet.TestHost/Properties/AssemblyInfo.cs
@@ -36,7 +36,7 @@ using System.Runtime.InteropServices;
 // The following GUID is for the ID of the typelib if this project is exposed to COM
 [assembly: Guid("12A3EDBB-65B6-4D47-98FC-2B80CEC71E51")]
 
-[assembly: InternalsVisibleTo("Microsoft.AspNet.TestHost.Tests")]
+[assembly: InternalsVisibleTo("Microsoft.AspNet.TestHost.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
 [assembly: AssemblyMetadata("Serviceable", "True")]
 [assembly: NeutralResourcesLanguage("en-us")]
 
diff --git a/src/Microsoft.AspNet.TestHost/project.json b/src/Microsoft.AspNet.TestHost/project.json
index 20bd0b4016..7f32b07622 100644
--- a/src/Microsoft.AspNet.TestHost/project.json
+++ b/src/Microsoft.AspNet.TestHost/project.json
@@ -1,5 +1,9 @@
 {
   "version": "1.0.0-*",
+  "compilationOptions": {
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
+  },
   "description": "ASP.NET 5 web server for writing and running tests.",
   "repository": {
     "type": "git",
diff --git a/test/Microsoft.AspNet.TestHost.Tests/project.json b/test/Microsoft.AspNet.TestHost.Tests/project.json
index ef4d4de144..661f7c8602 100644
--- a/test/Microsoft.AspNet.TestHost.Tests/project.json
+++ b/test/Microsoft.AspNet.TestHost.Tests/project.json
@@ -1,4 +1,8 @@
 {
+    "compilationOptions": {
+        "warningsAsErrors": true,
+        "keyFile": "../../tools/Key.snk"
+    },
     "dependencies": {
         "Microsoft.AspNet.Testing": "1.0.0-*",
         "Microsoft.AspNet.TestHost": "1.0.0-*",