diff --git a/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptor.cs b/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptor.cs
index c6d5fb03a7..6676fb25f4 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptor.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptor.cs
@@ -1,4 +1,6 @@
-namespace Microsoft.AspNet.Mvc
+using System;
+
+namespace Microsoft.AspNet.Mvc
 {
     public class FilterDescriptor
     {
diff --git a/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorComparer.cs b/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorOrderComparer.cs
similarity index 60%
rename from src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorComparer.cs
rename to src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorOrderComparer.cs
index a1261e7f0d..aa8e4287d0 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorComparer.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/Filters/FilterDescriptorOrderComparer.cs
@@ -2,11 +2,11 @@
 
 namespace Microsoft.AspNet.Mvc
 {
-    public class FilterDescriptorComparer : IComparer<FilterDescriptor>
+    public class FilterDescriptorOrderComparer : IComparer<FilterDescriptor>
     {
-        private static readonly FilterDescriptorComparer _comparer = new FilterDescriptorComparer();
+        private static readonly FilterDescriptorOrderComparer _comparer = new FilterDescriptorOrderComparer();
 
-        public static FilterDescriptorComparer Comparer { get { return _comparer; } }
+        public static FilterDescriptorOrderComparer Comparer { get { return _comparer; } }
 
         public int Compare([NotNull]FilterDescriptor x, [NotNull]FilterDescriptor y)
         {
diff --git a/src/Microsoft.AspNet.Mvc.Core/ReflectedActionDescriptorProvider.cs b/src/Microsoft.AspNet.Mvc.Core/ReflectedActionDescriptorProvider.cs
index 7ab772e011..0120bad716 100644
--- a/src/Microsoft.AspNet.Mvc.Core/ReflectedActionDescriptorProvider.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/ReflectedActionDescriptorProvider.cs
@@ -53,7 +53,7 @@ namespace Microsoft.AspNet.Mvc
                     controllerAttributes.OfType<IFilter>()
                                         .Select(filter => new FilterDescriptor(filter, FilterOrigin.Controller))
                                         .Concat(_globalFilters)
-                                        .OrderBy(d => d, FilterDescriptorComparer.Comparer)
+                                        .OrderBy(d => d, FilterDescriptorOrderComparer.Comparer)
                                         .ToArray();
 
                 foreach (var methodInfo in cd.ControllerTypeInfo.DeclaredMethods)
@@ -116,7 +116,7 @@ namespace Microsoft.AspNet.Mvc
             var filtersFromAction = attributes.OfType<IFilter>().Select(filter => new FilterDescriptor(filter, FilterOrigin.Action));
 
             ad.FilterDescriptors = filtersFromAction.Concat(globalAndControllerFilters)
-                                                    .OrderBy(d => d, FilterDescriptorComparer.Comparer)
+                                                    .OrderBy(d => d, FilterDescriptorOrderComparer.Comparer)
                                                     .ToList();
 
             return ad;