diff --git a/src/Microsoft.AspNet.Mvc.Razor/Compilation/CompilerCache.cs b/src/Microsoft.AspNet.Mvc.Razor/Compilation/CompilerCache.cs
index c097de6b98..b579772774 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/Compilation/CompilerCache.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/Compilation/CompilerCache.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Threading.Tasks;
-using Microsoft.Owin.FileSystems;
+using Microsoft.AspNet.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Compilation/CscBasedCompilationService.cs b/src/Microsoft.AspNet.Mvc.Razor/Compilation/CscBasedCompilationService.cs
index 539c5311ad..c15970ba1e 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/Compilation/CscBasedCompilationService.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/Compilation/CscBasedCompilationService.cs
@@ -7,7 +7,7 @@ using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
-using Microsoft.Owin.FileSystems;
+using Microsoft.AspNet.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Razor/IRazorCompilationService.cs b/src/Microsoft.AspNet.Mvc.Razor/Razor/IRazorCompilationService.cs
index f8d4e1c2de..b22c9af035 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/Razor/IRazorCompilationService.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/Razor/IRazorCompilationService.cs
@@ -1,5 +1,5 @@
 using System.Threading.Tasks;
-using Microsoft.Owin.FileSystems;
+using Microsoft.AspNet.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
diff --git a/src/Microsoft.AspNet.Mvc.Razor/Razor/RazorCompilationService.cs b/src/Microsoft.AspNet.Mvc.Razor/Razor/RazorCompilationService.cs
index c5e434b92e..3c9efdc91e 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/Razor/RazorCompilationService.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/Razor/RazorCompilationService.cs
@@ -3,8 +3,8 @@ using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.AspNet.FileSystems;
 using Microsoft.AspNet.Razor;
-using Microsoft.Owin.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
diff --git a/src/Microsoft.AspNet.Mvc.Razor/ViewEngine/PathBasedViewFactory.cs b/src/Microsoft.AspNet.Mvc.Razor/ViewEngine/PathBasedViewFactory.cs
index 8917645389..2225b8d58d 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/ViewEngine/PathBasedViewFactory.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/ViewEngine/PathBasedViewFactory.cs
@@ -1,6 +1,6 @@
 using System;
 using System.Threading.Tasks;
-using Microsoft.Owin.FileSystems;
+using Microsoft.AspNet.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
diff --git a/src/Microsoft.AspNet.Mvc.Startup/MvcServices.cs b/src/Microsoft.AspNet.Mvc.Startup/MvcServices.cs
index 37f941ce0c..94cf7f7902 100644
--- a/src/Microsoft.AspNet.Mvc.Startup/MvcServices.cs
+++ b/src/Microsoft.AspNet.Mvc.Startup/MvcServices.cs
@@ -1,6 +1,6 @@
 using Microsoft.AspNet.DependencyInjection;
+using Microsoft.AspNet.FileSystems;
 using Microsoft.AspNet.Mvc.Razor;
-using Microsoft.Owin.FileSystems;
 
 namespace Microsoft.AspNet.Mvc.Startup
 {