diff --git a/src/Microsoft.AspNet.Hosting/WebApplication.cs b/src/Microsoft.AspNet.Hosting/WebApplication.cs
index fea0d58353..7d77a911db 100644
--- a/src/Microsoft.AspNet.Hosting/WebApplication.cs
+++ b/src/Microsoft.AspNet.Hosting/WebApplication.cs
@@ -11,7 +11,7 @@ namespace Microsoft.AspNet.Hosting
 {
     public class WebApplication
     {
-        private const string HostingJsonFile = "Microsoft.AspNet.Hosting.json";
+        private const string HostingJsonFile = "hosting.json";
         private const string ConfigFileKey = "config";
 
         public static void Run(string[] args)
diff --git a/src/Microsoft.AspNet.Server.Testing/Deployers/IISDeployer.cs b/src/Microsoft.AspNet.Server.Testing/Deployers/IISDeployer.cs
index db2fd224d4..5403dbc1df 100644
--- a/src/Microsoft.AspNet.Server.Testing/Deployers/IISDeployer.cs
+++ b/src/Microsoft.AspNet.Server.Testing/Deployers/IISDeployer.cs
@@ -66,9 +66,9 @@ namespace Microsoft.AspNet.Server.Testing
 
         private void SetAspEnvironmentWithJson()
         {
-            // Drop a Microsoft.AspNet.Hosting.json with Hosting:Environment information.
-            Logger.LogInformation("Creating Microsoft.AspNet.Hosting.json file with Hosting:Environment.");
-            var jsonFile = Path.Combine(DeploymentParameters.ApplicationPath, "Microsoft.AspNet.Hosting.json");
+            // Drop a hosting.json with Hosting:Environment information.
+            Logger.LogInformation("Creating hosting.json file with Hosting:Environment.");
+            var jsonFile = Path.Combine(DeploymentParameters.ApplicationPath, "hosting.json");
             File.WriteAllText(jsonFile, string.Format("{ \"Hosting:Environment\":\"{0}\" }", DeploymentParameters.EnvironmentName));
         }