1 files changed, 1 insertions, 7 deletions
diff --git a/src/mscorlib/src/System/Reflection/RuntimeModule.cs b/src/mscorlib/src/System/Reflection/RuntimeModule.cs
index 75809cba01..f9b733736d 100644
--- a/src/mscorlib/src/System/Reflection/RuntimeModule.cs
+++ b/src/mscorlib/src/System/Reflection/RuntimeModule.cs
@@ -12,7 +12,6 @@ using System.Diagnostics.Contracts;
 
 namespace System.Reflection
 {
-    [Serializable]
     internal class RuntimeModule : Module
     {
         internal RuntimeModule() { throw new NotSupportedException(); }
@@ -448,12 +447,7 @@ namespace System.Reflection
         #region Public Virtuals
         public override void GetObjectData(SerializationInfo info, StreamingContext context)
         {
-            if (info == null)
-            {
-                throw new ArgumentNullException(nameof(info));
-            }
-            Contract.EndContractBlock();
-            UnitySerializationHolder.GetUnitySerializationInfo(info, UnitySerializationHolder.ModuleUnity, this.ScopeName, this.GetRuntimeAssembly());
+            throw new PlatformNotSupportedException();
         }
 
         public override Type GetType(String className, bool throwOnError, bool ignoreCase)