diff --git a/src/Microsoft.AspNet.Hosting/HostingEnvironment.cs b/src/Microsoft.AspNet.Hosting/HostingEnvironment.cs
index 181aa6aac8..47d805f99b 100644
--- a/src/Microsoft.AspNet.Hosting/HostingEnvironment.cs
+++ b/src/Microsoft.AspNet.Hosting/HostingEnvironment.cs
@@ -2,7 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Collections.Generic;
-using Microsoft.AspNet.FileSystems;
+using Microsoft.AspNet.FileProviders;
 using Microsoft.Framework.Runtime;
 
 namespace Microsoft.AspNet.Hosting
@@ -15,7 +15,7 @@ namespace Microsoft.AspNet.Hosting
         {
             EnvironmentName = DefaultEnvironmentName;
             WebRoot = HostingUtilities.GetWebRoot(appEnvironment.ApplicationBasePath);
-            WebRootFileSystem = new PhysicalFileSystem(WebRoot);
+            WebRootFileProvider = new PhysicalFileProvider(WebRoot);
             foreach (var configure in configures)
             {
                 configure.Configure(this);
@@ -26,6 +26,6 @@ namespace Microsoft.AspNet.Hosting
 
         public string WebRoot { get; private set; }
 
-        public IFileSystem WebRootFileSystem { get; set; }
+        public IFileProvider WebRootFileProvider { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Hosting/IHostingEnvironment.cs b/src/Microsoft.AspNet.Hosting/IHostingEnvironment.cs
index bcf0e6b812..8f5966e332 100644
--- a/src/Microsoft.AspNet.Hosting/IHostingEnvironment.cs
+++ b/src/Microsoft.AspNet.Hosting/IHostingEnvironment.cs
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using Microsoft.AspNet.FileSystems;
+using Microsoft.AspNet.FileProviders;
 using Microsoft.Framework.Runtime;
 
 namespace Microsoft.AspNet.Hosting
@@ -13,6 +13,6 @@ namespace Microsoft.AspNet.Hosting
 
         string WebRoot { get; }
 
-        IFileSystem WebRootFileSystem { get; set; }
+        IFileProvider WebRootFileProvider { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Hosting/project.json b/src/Microsoft.AspNet.Hosting/project.json
index ebd3beb943..5c740ce152 100644
--- a/src/Microsoft.AspNet.Hosting/project.json
+++ b/src/Microsoft.AspNet.Hosting/project.json
@@ -2,7 +2,7 @@
     "version": "1.0.0-*",
     "description": "ASP.NET 5 core hosting infrastructure and startup logic for web applications.",
     "dependencies": {
-        "Microsoft.AspNet.FileSystems":  "1.0.0-*",
+        "Microsoft.AspNet.FileProviders":  "1.0.0-*",
         "Microsoft.AspNet.Http.Core": "1.0.0-*",
         "Microsoft.Framework.Logging": "1.0.0-*",
         "Microsoft.Framework.OptionsModel": "1.0.0-*",
diff --git a/test/Microsoft.AspNet.Hosting.Tests/HostingEngineTests.cs b/test/Microsoft.AspNet.Hosting.Tests/HostingEngineTests.cs
index e2e0ba6852..3c6d5c13b6 100644
--- a/test/Microsoft.AspNet.Hosting.Tests/HostingEngineTests.cs
+++ b/test/Microsoft.AspNet.Hosting.Tests/HostingEngineTests.cs
@@ -59,7 +59,7 @@ namespace Microsoft.AspNet.Hosting
             var services = HostingServices.Create().BuildServiceProvider();
             var env = services.GetRequiredService<IHostingEnvironment>();
             Assert.Equal(Path.GetFullPath("testroot"), env.WebRoot);
-            Assert.True(env.WebRootFileSystem.GetFileInfo("TextFile.txt").Exists);
+            Assert.True(env.WebRootFileProvider.GetFileInfo("TextFile.txt").Exists);
         }
 
         public void Initialize(IApplicationBuilder builder)