diff --git a/test/Microsoft.AspNet.Diagnostics.Tests/RuntimeInfoMiddlewareTest.cs b/test/Microsoft.AspNet.Diagnostics.Tests/RuntimeInfoMiddlewareTest.cs
index b71080b3ad..8e6eb38bae 100644
--- a/test/Microsoft.AspNet.Diagnostics.Tests/RuntimeInfoMiddlewareTest.cs
+++ b/test/Microsoft.AspNet.Diagnostics.Tests/RuntimeInfoMiddlewareTest.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
@@ -160,6 +161,14 @@ namespace Microsoft.AspNet.Diagnostics.Tests
                     throw new NotImplementedException("Should not be needed by this middleware");
                 }
             }
+
+            public IEnumerable<AssemblyName> LoadableAssemblies
+            {
+                get
+                {
+                    throw new NotImplementedException("Should not be needed by this middleware");
+                }
+            }
         }
     }
 }
\ No newline at end of file