diff --git a/src/Microsoft.AspNet.Mvc.Razor/Compilation/DefaultRazorFileSystemCache.cs b/src/Microsoft.AspNet.Mvc.Razor/Compilation/DefaultRazorFileSystemCache.cs
index 82dd51d9fd..b60d694078 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/Compilation/DefaultRazorFileSystemCache.cs
+++ b/src/Microsoft.AspNet.Mvc.Razor/Compilation/DefaultRazorFileSystemCache.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Concurrent;
 using Microsoft.AspNet.FileSystems;
 using Microsoft.Framework.OptionsModel;
+using Microsoft.Framework.Expiration.Interfaces;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
@@ -71,6 +72,12 @@ namespace Microsoft.AspNet.Mvc.Razor
             }
         }
 
+        /// <inheritdoc />
+        public IExpirationTrigger Watch(string filter)
+        {
+            return _fileSystem.Watch(filter);
+        }
+
         private class ExpiringFileInfo
         {
             public IFileInfo FileInfo { get; set; }
diff --git a/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileInfo.cs b/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileInfo.cs
index 6941503f81..21e36ecde4 100644
--- a/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileInfo.cs
+++ b/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileInfo.cs
@@ -5,7 +5,6 @@ using System;
 using System.IO;
 using System.Text;
 using Microsoft.AspNet.FileSystems;
-using Microsoft.Framework.Expiration.Interfaces;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
@@ -61,10 +60,5 @@ namespace Microsoft.AspNet.Mvc.Razor
         {
             throw new NotSupportedException();
         }
-
-        public IExpirationTrigger CreateFileChangeTrigger()
-        {
-            throw new NotSupportedException();
-        }
     }
 }
\ No newline at end of file
diff --git a/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileSystem.cs b/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileSystem.cs
index 3b7f2d1c7c..84dfc25b80 100644
--- a/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileSystem.cs
+++ b/test/Microsoft.AspNet.Mvc.Razor.Host.Test/TestFileSystem.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using Microsoft.AspNet.FileSystems;
+using Microsoft.Framework.Expiration.Interfaces;
 
 namespace Microsoft.AspNet.Mvc.Razor
 {
@@ -53,5 +54,9 @@ namespace Microsoft.AspNet.Mvc.Razor
             }
         }
 
+        public IExpirationTrigger Watch(string filter)
+        {
+            throw new NotImplementedException();
+        }
     }
 }
\ No newline at end of file
diff --git a/test/Microsoft.AspNet.Mvc.Razor.Test/Compilation/DefaultRazorFileSystemCacheTest.cs b/test/Microsoft.AspNet.Mvc.Razor.Test/Compilation/DefaultRazorFileSystemCacheTest.cs
index f10ec52df3..3ff4f5ed29 100644
--- a/test/Microsoft.AspNet.Mvc.Razor.Test/Compilation/DefaultRazorFileSystemCacheTest.cs
+++ b/test/Microsoft.AspNet.Mvc.Razor.Test/Compilation/DefaultRazorFileSystemCacheTest.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using Microsoft.AspNet.FileSystems;
 using Microsoft.Framework.OptionsModel;
+using Microsoft.Framework.Expiration.Interfaces;
 using Moq;
 using Xunit;
 
@@ -404,7 +405,7 @@ namespace Microsoft.AspNet.Mvc.Razor
                 }
             }
 
-            public bool TryGetParentPath(string subpath, out string parentPath)
+            public IExpirationTrigger Watch(string filter)
             {
                 throw new NotImplementedException();
             }