diff --git a/src/Microsoft.AspNet.Hosting.Abstractions/project.json b/src/Microsoft.AspNet.Hosting.Abstractions/project.json
index 0bc206ff72..d8764590da 100644
--- a/src/Microsoft.AspNet.Hosting.Abstractions/project.json
+++ b/src/Microsoft.AspNet.Hosting.Abstractions/project.json
@@ -1,5 +1,9 @@
 {
   "version": "1.0.0-*",
+  "compilationOptions": {
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
+  },
   "description": "ASP.NET 5 Hosting abstractions.",
   "repository": {
     "type": "git",
diff --git a/src/Microsoft.AspNet.Hosting.Server.Abstractions/project.json b/src/Microsoft.AspNet.Hosting.Server.Abstractions/project.json
index a3ccdf94bb..be15de9ea4 100644
--- a/src/Microsoft.AspNet.Hosting.Server.Abstractions/project.json
+++ b/src/Microsoft.AspNet.Hosting.Server.Abstractions/project.json
@@ -1,5 +1,9 @@
 {
   "version": "1.0.0-*",
+  "compilationOptions": {
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
+  },
   "description": "ASP.NET 5 Hosting server abstractions.",
   "repository": {
     "type": "git",
diff --git a/src/Microsoft.AspNet.Hosting/Properties/AssemblyInfo.cs b/src/Microsoft.AspNet.Hosting/Properties/AssemblyInfo.cs
index 1ee4059c80..4f51e0868a 100644
--- a/src/Microsoft.AspNet.Hosting/Properties/AssemblyInfo.cs
+++ b/src/Microsoft.AspNet.Hosting/Properties/AssemblyInfo.cs
@@ -6,5 +6,5 @@ using System.Resources;
 using System.Runtime.CompilerServices;
 
 [assembly: AssemblyMetadata("Serviceable", "True")]
-[assembly: InternalsVisibleTo("Microsoft.AspNet.Hosting.Tests")]
+[assembly: InternalsVisibleTo("Microsoft.AspNet.Hosting.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
 [assembly: NeutralResourcesLanguage("en-us")]
diff --git a/src/Microsoft.AspNet.Hosting/project.json b/src/Microsoft.AspNet.Hosting/project.json
index edd34b5469..8bfda6e2d9 100644
--- a/src/Microsoft.AspNet.Hosting/project.json
+++ b/src/Microsoft.AspNet.Hosting/project.json
@@ -6,7 +6,8 @@
     "url": "git://github.com/aspnet/hosting"
   },
   "compilationOptions": {
-    "warningsAsErrors": true
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
   },
   "dependencies": {
     "Microsoft.AspNet.FileProviders.Physical": "1.0.0-*",
diff --git a/src/Microsoft.AspNet.Server.Testing/project.json b/src/Microsoft.AspNet.Server.Testing/project.json
index 66ee97d55c..833e0f0a62 100644
--- a/src/Microsoft.AspNet.Server.Testing/project.json
+++ b/src/Microsoft.AspNet.Server.Testing/project.json
@@ -1,5 +1,9 @@
 {
   "version": "1.0.0-*",
+  "compilationOptions": {
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
+  },
   "description": "ASP.NET 5 helpers to deploy applications to IIS Express, IIS, WebListener and Kestrel for testing.",
   "repository": {
     "type": "git",
diff --git a/test/Microsoft.AspNet.Hosting.Tests/project.json b/test/Microsoft.AspNet.Hosting.Tests/project.json
index 504a10b0b4..f00e2281e0 100644
--- a/test/Microsoft.AspNet.Hosting.Tests/project.json
+++ b/test/Microsoft.AspNet.Hosting.Tests/project.json
@@ -1,4 +1,8 @@
 {
+    "compilationOptions": {
+        "warningsAsErrors": true,
+        "keyFile": "../../tools/Key.snk"
+    },
     "dependencies": {
         "Microsoft.AspNet.Hosting": "1.0.0-*",
         "Microsoft.AspNet.Owin": "1.0.0-*",
diff --git a/tools/Key.snk b/tools/Key.snk
new file mode 100644
index 0000000000..e10e4889c1
Binary files /dev/null and b/tools/Key.snk differ