diff --git a/src/Microsoft.AspNet.Mvc.Core/Formatters/JsonOutputFormatter.cs b/src/Microsoft.AspNet.Mvc.Core/Formatters/JsonOutputFormatter.cs
index b882f5ce8a..2d5b016b1f 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Formatters/JsonOutputFormatter.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/Formatters/JsonOutputFormatter.cs
@@ -4,6 +4,7 @@
 using System;
 using System.IO;
 using System.Threading.Tasks;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 using Newtonsoft.Json;
 
@@ -68,8 +69,8 @@ namespace Microsoft.AspNet.Mvc
             var response = context.ActionContext.HttpContext.Response;
             var selectedEncoding = context.SelectedEncoding;
 
-            using (var delegatingStream = new DelegatingStream(response.Body))
-            using (var writer = new StreamWriter(delegatingStream, selectedEncoding, 1024, leaveOpen: true))
+            using (var nonDisposableStream = new NonDisposableStream(response.Body))
+            using (var writer = new StreamWriter(nonDisposableStream, selectedEncoding, 1024, leaveOpen: true))
             {
                 WriteObject(writer, context.Object);
             }
diff --git a/src/Microsoft.AspNet.Mvc.Core/Formatters/DelegatingStream.cs b/src/Microsoft.AspNet.Mvc.Core/Internal/NonDisposableStream.cs
similarity index 96%
rename from src/Microsoft.AspNet.Mvc.Core/Formatters/DelegatingStream.cs
rename to src/Microsoft.AspNet.Mvc.Core/Internal/NonDisposableStream.cs
index 0be1a3b322..62a5c5a055 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Formatters/DelegatingStream.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/Internal/NonDisposableStream.cs
@@ -8,22 +8,22 @@ using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace Microsoft.AspNet.Mvc
+namespace Microsoft.AspNet.Mvc.Internal
 {
     /// <summary>
     /// Stream that delegates to an inner stream.
     /// This Stream is present so that the inner stream is not closed
     /// even when Close() or Dispose() is called.
     /// </summary>
-    public class DelegatingStream : Stream
+    public class NonDisposableStream : Stream
     {
         private readonly Stream _innerStream;
 
         /// <summary>
-        /// Initializes a new <see cref="DelegatingStream"/>.
+        /// Initializes a new <see cref="NonDisposableStream"/>.
         /// </summary>
         /// <param name="innerStream">The stream which should not be closed or flushed.</param>
-        public DelegatingStream([NotNull] Stream innerStream)
+        public NonDisposableStream([NotNull] Stream innerStream)
         {
             _innerStream = innerStream;
         }
diff --git a/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerInputFormatter.cs b/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerInputFormatter.cs
index f9ae5007fa..8b0aad030c 100644
--- a/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerInputFormatter.cs
+++ b/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerInputFormatter.cs
@@ -10,6 +10,7 @@ using System.Runtime.Serialization;
 using System.Text;
 using System.Threading.Tasks;
 using System.Xml;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc.Xml
@@ -168,7 +169,7 @@ namespace Microsoft.AspNet.Mvc.Xml
         {
             var request = context.ActionContext.HttpContext.Request;
 
-            using (var xmlReader = CreateXmlReader(new DelegatingStream(request.Body)))
+            using (var xmlReader = CreateXmlReader(new NonDisposableStream(request.Body)))
             {
                 var type = GetSerializableType(context.ModelType);
 
diff --git a/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerOutputFormatter.cs b/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerOutputFormatter.cs
index 1b5da1437a..285d8416d5 100644
--- a/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerOutputFormatter.cs
+++ b/src/Microsoft.AspNet.Mvc.Xml/XmlDataContractSerializerOutputFormatter.cs
@@ -7,6 +7,7 @@ using System.IO;
 using System.Runtime.Serialization;
 using System.Threading.Tasks;
 using System.Xml;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc.Xml
@@ -161,7 +162,7 @@ namespace Microsoft.AspNet.Mvc.Xml
 
             var innerStream = context.ActionContext.HttpContext.Response.Body;
 
-            using (var outputStream = new DelegatingStream(innerStream))
+            using (var outputStream = new NonDisposableStream(innerStream))
             using (var xmlWriter = CreateXmlWriter(outputStream, tempWriterSettings))
             {
                 var obj = context.Object;
diff --git a/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerInputFormatter.cs b/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerInputFormatter.cs
index d553064849..c187a0412c 100644
--- a/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerInputFormatter.cs
+++ b/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerInputFormatter.cs
@@ -10,6 +10,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Xml;
 using System.Xml.Serialization;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc.Xml
@@ -146,7 +147,7 @@ namespace Microsoft.AspNet.Mvc.Xml
         {
             var request = context.ActionContext.HttpContext.Request;
 
-            using (var xmlReader = CreateXmlReader(new DelegatingStream(request.Body)))
+            using (var xmlReader = CreateXmlReader(new NonDisposableStream(request.Body)))
             {
                 var type = GetSerializableType(context.ModelType);
 
diff --git a/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerOutputFormatter.cs b/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerOutputFormatter.cs
index cde4a7ac53..d485d268f9 100644
--- a/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerOutputFormatter.cs
+++ b/src/Microsoft.AspNet.Mvc.Xml/XmlSerializerOutputFormatter.cs
@@ -7,6 +7,7 @@ using System.IO;
 using System.Threading.Tasks;
 using System.Xml;
 using System.Xml.Serialization;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc.Xml
@@ -137,7 +138,7 @@ namespace Microsoft.AspNet.Mvc.Xml
 
             var innerStream = context.ActionContext.HttpContext.Response.Body;
 
-            using (var outputStream = new DelegatingStream(innerStream))
+            using (var outputStream = new NonDisposableStream(innerStream))
             using (var xmlWriter = CreateXmlWriter(outputStream, tempWriterSettings))
             {
                 var obj = context.Object;
diff --git a/test/Microsoft.AspNet.Mvc.Core.Test/Formatters/DelegatingStreamTests.cs b/test/Microsoft.AspNet.Mvc.Core.Test/Formatters/NonDisposableStreamTest.cs
similarity index 67%
rename from test/Microsoft.AspNet.Mvc.Core.Test/Formatters/DelegatingStreamTests.cs
rename to test/Microsoft.AspNet.Mvc.Core.Test/Formatters/NonDisposableStreamTest.cs
index 8d4a09730d..8a63dc275d 100644
--- a/test/Microsoft.AspNet.Mvc.Core.Test/Formatters/DelegatingStreamTests.cs
+++ b/test/Microsoft.AspNet.Mvc.Core.Test/Formatters/NonDisposableStreamTest.cs
@@ -7,19 +7,19 @@ using System.Threading.Tasks;
 using Microsoft.AspNet.Mvc.Core;
 using Xunit;
 
-namespace Microsoft.AspNet.Mvc
+namespace Microsoft.AspNet.Mvc.Internal
 {
-    public class DelegatingStreamTests
+    public class NonDisposableStreamTest
     {
         [Fact]
         public void InnerStreamIsOpenOnClose()
         {
             // Arrange
             var innerStream = new MemoryStream();
-            var delegatingStream = new DelegatingStream(innerStream);
+            var nonDisposableStream = new NonDisposableStream(innerStream);
 
             // Act
-            delegatingStream.Close();
+            nonDisposableStream.Close();
 
             // Assert
             Assert.True(innerStream.CanRead);
@@ -30,10 +30,10 @@ namespace Microsoft.AspNet.Mvc
         {
             // Arrange
             var innerStream = new MemoryStream();
-            var delegatingStream = new DelegatingStream(innerStream);
+            var nonDisposableStream = new NonDisposableStream(innerStream);
 
             // Act
-            delegatingStream.Dispose();
+            nonDisposableStream.Dispose();
 
             // Assert
             Assert.True(innerStream.CanRead);
@@ -43,10 +43,10 @@ namespace Microsoft.AspNet.Mvc
         public void InnerStreamIsNotFlushedOnDispose()
         {
             var stream = FlushReportingStream.GetThrowingStream();
-            var delegatingStream = new DelegatingStream(stream);
+            var nonDisposableStream = new NonDisposableStream(stream);
 
             // Act & Assert
-            delegatingStream.Dispose();
+            nonDisposableStream.Dispose();
         }
 
         [Fact]
@@ -55,10 +55,10 @@ namespace Microsoft.AspNet.Mvc
             // Arrange
             var stream = FlushReportingStream.GetThrowingStream();
 
-            var delegatingStream = new DelegatingStream(stream);
+            var nonDisposableStream = new NonDisposableStream(stream);
 
             // Act & Assert
-            delegatingStream.Close();
+            nonDisposableStream.Close();
         }
 
         [Fact]
@@ -67,10 +67,10 @@ namespace Microsoft.AspNet.Mvc
             // Arrange
             var stream = FlushReportingStream.GetThrowingStream();
 
-            var delegatingStream = new DelegatingStream(stream);
+            var nonDisposableStream = new NonDisposableStream(stream);
 
             // Act & Assert
-            delegatingStream.Flush();
+            nonDisposableStream.Flush();
         }
 
         [Fact]
@@ -79,10 +79,10 @@ namespace Microsoft.AspNet.Mvc
             // Arrange
             var stream = FlushReportingStream.GetThrowingStream();
 
-            var delegatingStream = new DelegatingStream(stream);
+            var nonDisposableStream = new NonDisposableStream(stream);
 
             // Act & Assert
-            await delegatingStream.FlushAsync();
+            await nonDisposableStream.FlushAsync();
         }
     }
 }
diff --git a/test/WebSites/ConnegWebSite/VCardFormatter_V3.cs b/test/WebSites/ConnegWebSite/VCardFormatter_V3.cs
index 00ce788393..83c75981a2 100644
--- a/test/WebSites/ConnegWebSite/VCardFormatter_V3.cs
+++ b/test/WebSites/ConnegWebSite/VCardFormatter_V3.cs
@@ -8,6 +8,7 @@ using System.Text;
 using System.Threading.Tasks;
 using ConnegWebSite.Models;
 using Microsoft.AspNet.Mvc;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace ConnegWebSite
@@ -38,7 +39,7 @@ namespace ConnegWebSite
             builder.AppendLine();
             builder.AppendLine("END:VCARD");
 
-            var responseStream = new DelegatingStream(context.ActionContext.HttpContext.Response.Body);
+            var responseStream = new NonDisposableStream(context.ActionContext.HttpContext.Response.Body);
             using (var writer = new StreamWriter(responseStream, context.SelectedEncoding, bufferSize: 1024))
             {
                 await writer.WriteAsync(builder.ToString());
diff --git a/test/WebSites/ConnegWebSite/VCardFormatter_V4.cs b/test/WebSites/ConnegWebSite/VCardFormatter_V4.cs
index 9997f07ace..acd954fa01 100644
--- a/test/WebSites/ConnegWebSite/VCardFormatter_V4.cs
+++ b/test/WebSites/ConnegWebSite/VCardFormatter_V4.cs
@@ -8,6 +8,7 @@ using System.Text;
 using System.Threading.Tasks;
 using ConnegWebSite.Models;
 using Microsoft.AspNet.Mvc;
+using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace ConnegWebSite
@@ -41,7 +42,7 @@ namespace ConnegWebSite
             builder.AppendLine();
             builder.AppendLine("END:VCARD");
 
-            var responseStream = new DelegatingStream(context.ActionContext.HttpContext.Response.Body);
+            var responseStream = new NonDisposableStream(context.ActionContext.HttpContext.Response.Body);
             using (var writer = new StreamWriter(responseStream, context.SelectedEncoding, bufferSize: 1024))
             {
                 await writer.WriteAsync(builder.ToString());