diff --git a/src/Microsoft.AspNet.Mvc.Core/Internal/UTF8EncodingWithoutBOM.cs b/src/Microsoft.AspNet.Mvc.Common/Encodings.cs
similarity index 50%
rename from src/Microsoft.AspNet.Mvc.Core/Internal/UTF8EncodingWithoutBOM.cs
rename to src/Microsoft.AspNet.Mvc.Common/Encodings.cs
index 8031b09efc..7879febce1 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Internal/UTF8EncodingWithoutBOM.cs
+++ b/src/Microsoft.AspNet.Mvc.Common/Encodings.cs
@@ -3,11 +3,14 @@
 
 using System.Text;
 
-namespace Microsoft.AspNet.Mvc.Internal
+namespace Microsoft.AspNet.Mvc
 {
-    public static class UTF8EncodingWithoutBOM
+    internal static class Encodings
     {
-        public static readonly Encoding Encoding
-            = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false);
+        /// <summary>
+        /// Returns UTF8 Encoding without BOM and throws on invalid bytes
+        /// </summary>
+        public static readonly Encoding UTF8EncodingWithoutBOM
+            = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true);
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Common/Microsoft.AspNet.Mvc.Common.kproj b/src/Microsoft.AspNet.Mvc.Common/Microsoft.AspNet.Mvc.Common.kproj
index a82a179555..c76849b092 100644
--- a/src/Microsoft.AspNet.Mvc.Common/Microsoft.AspNet.Mvc.Common.kproj
+++ b/src/Microsoft.AspNet.Mvc.Common/Microsoft.AspNet.Mvc.Common.kproj
@@ -20,6 +20,7 @@
     <Content Include="project.json" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Encodings.cs" />
     <Compile Include="NotNullArgument.cs" />
     <Compile Include="PlatformHelper.cs" />
     <Compile Include="PropertyHelper.cs" />
diff --git a/src/Microsoft.AspNet.Mvc.Common/project.json b/src/Microsoft.AspNet.Mvc.Common/project.json
index 90bfb2c484..2fed1ce7e2 100644
--- a/src/Microsoft.AspNet.Mvc.Common/project.json
+++ b/src/Microsoft.AspNet.Mvc.Common/project.json
@@ -9,6 +9,10 @@
   },
   "configurations": {
     "net45": {},
-    "k10": {}
+    "k10": {
+        "dependencies": {
+            "System.Text.Encoding.Extensions": "4.0.10.0"
+        }
     }
+  }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNet.Mvc.Core/ActionResults/JsonResult.cs b/src/Microsoft.AspNet.Mvc.Core/ActionResults/JsonResult.cs
index aac9c93802..06afd12f8f 100644
--- a/src/Microsoft.AspNet.Mvc.Core/ActionResults/JsonResult.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/ActionResults/JsonResult.cs
@@ -4,7 +4,6 @@
 using System;
 using System.IO;
 using System.Text;
-using Microsoft.AspNet.Mvc.Internal;
 using Newtonsoft.Json;
 
 namespace Microsoft.AspNet.Mvc
@@ -14,7 +13,7 @@ namespace Microsoft.AspNet.Mvc
         private const int BufferSize = 1024;
 
         private JsonSerializerSettings _jsonSerializerSettings;
-        private Encoding _encoding = UTF8EncodingWithoutBOM.Encoding;
+        private Encoding _encoding = Encodings.UTF8EncodingWithoutBOM;
 
         public JsonResult([NotNull] object data)
         {
diff --git a/src/Microsoft.AspNet.Mvc.Core/ActionResults/ViewResult.cs b/src/Microsoft.AspNet.Mvc.Core/ActionResults/ViewResult.cs
index 4513b39299..7964955aa1 100644
--- a/src/Microsoft.AspNet.Mvc.Core/ActionResults/ViewResult.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/ActionResults/ViewResult.cs
@@ -6,7 +6,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Mvc.Core;
-using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.AspNet.Mvc.Rendering;
 using Microsoft.Framework.DependencyInjection;
 
@@ -33,7 +32,7 @@ namespace Microsoft.AspNet.Mvc
             {
                 context.HttpContext.Response.ContentType = "text/html; charset=utf-8";
                 var wrappedStream = new StreamWrapper(context.HttpContext.Response.Body);
-                var encoding = UTF8EncodingWithoutBOM.Encoding;
+                var encoding = Encodings.UTF8EncodingWithoutBOM;
                 using (var writer = new StreamWriter(wrappedStream, encoding, BufferSize, leaveOpen: true))
                 {
                     try
diff --git a/src/Microsoft.AspNet.Mvc.Core/Microsoft.AspNet.Mvc.Core.kproj b/src/Microsoft.AspNet.Mvc.Core/Microsoft.AspNet.Mvc.Core.kproj
index 2c2fa4185b..93132102fa 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Microsoft.AspNet.Mvc.Core.kproj
+++ b/src/Microsoft.AspNet.Mvc.Core/Microsoft.AspNet.Mvc.Core.kproj
@@ -139,7 +139,6 @@
     <Compile Include="IControllerFactory.cs" />
     <Compile Include="Injector.cs" />
     <Compile Include="Internal\TypeHelper.cs" />
-    <Compile Include="Internal\UTF8EncodingWithoutBOM.cs" />
     <Compile Include="IUrlHelper.cs" />
     <Compile Include="JsonOutputFormatter.cs" />
     <Compile Include="MvcOptions.cs" />
diff --git a/test/Microsoft.AspNet.Mvc.Core.Test/ActionResults/ObjectContentResultTests.cs b/test/Microsoft.AspNet.Mvc.Core.Test/ActionResults/ObjectContentResultTests.cs
index 9c1f94d589..cd48ac9ae6 100644
--- a/test/Microsoft.AspNet.Mvc.Core.Test/ActionResults/ObjectContentResultTests.cs
+++ b/test/Microsoft.AspNet.Mvc.Core.Test/ActionResults/ObjectContentResultTests.cs
@@ -6,7 +6,6 @@ using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
-using Microsoft.AspNet.Mvc.Internal;
 using Microsoft.AspNet.Routing;
 using Moq;
 using Xunit;
@@ -64,7 +63,7 @@ namespace Microsoft.AspNet.Mvc.Core.Test.ActionResults
             var actionContext = CreateMockActionContext(httpResponse);
 
             var tempStream = new MemoryStream();
-            using (var writer = new StreamWriter(tempStream, UTF8EncodingWithoutBOM.Encoding, 1024, leaveOpen: true))
+            using (var writer = new StreamWriter(tempStream, Encodings.UTF8EncodingWithoutBOM, 1024, leaveOpen: true))
             {
                 var formatter = new JsonOutputFormatter(JsonOutputFormatter.CreateDefaultSettings(), false);
                 formatter.WriteObject(writer, nonStringValue);