diff --git a/src/Microsoft.AspNet.Cors/project.json b/src/Microsoft.AspNet.Cors/project.json
index a21984e..508cb6c 100644
--- a/src/Microsoft.AspNet.Cors/project.json
+++ b/src/Microsoft.AspNet.Cors/project.json
@@ -5,7 +5,8 @@
     "url": "https://github.com/aspnet/cors"
   },
   "compilationOptions": {
-    "warningsAsErrors": true
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
   },
   "dependencies": {
     "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
diff --git a/tools/Key.snk b/tools/Key.snk
new file mode 100644
index 0000000..e10e488
Binary files /dev/null and b/tools/Key.snk differ