1 files changed, 5 insertions, 4 deletions
diff --git a/src/mscorlib/src/System/WeakReferenceOfT.cs b/src/mscorlib/src/System/WeakReferenceOfT.cs
index fbb6f09098..7347683e2f 100644
--- a/src/mscorlib/src/System/WeakReferenceOfT.cs
+++ b/src/mscorlib/src/System/WeakReferenceOfT.cs
@@ -20,6 +20,7 @@ using System.Diagnostics.Contracts;
 namespace System
 {
     [Serializable]
+    [System.Runtime.CompilerServices.TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")] 
     // This class is sealed to mitigate security issues caused by Object::MemberwiseClone.
     public sealed class WeakReference<T> : ISerializable
         where T : class
@@ -52,8 +53,8 @@ namespace System
             }
             Contract.EndContractBlock();
 
-            T target = (T)info.GetValue("TrackedObject", typeof(T));
-            bool trackResurrection = info.GetBoolean("TrackResurrection");
+            T target = (T)info.GetValue("TrackedObject", typeof(T)); // Do not rename (binary serialization)
+            bool trackResurrection = info.GetBoolean("TrackResurrection"); // Do not rename (binary serialization)
 
             Create(target, trackResurrection);
         }
@@ -105,8 +106,8 @@ namespace System
             }
             Contract.EndContractBlock();
 
-            info.AddValue("TrackedObject", this.Target, typeof(T));
-            info.AddValue("TrackResurrection", IsTrackResurrection());
+            info.AddValue("TrackedObject", this.Target, typeof(T)); // Do not rename (binary serialization)
+            info.AddValue("TrackResurrection", IsTrackResurrection()); // Do not rename (binary serialization)
         }
 
         [MethodImplAttribute(MethodImplOptions.InternalCall)]