1 files changed, 24 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Reflection/Missing.cs b/src/mscorlib/shared/System/Reflection/Missing.cs
new file mode 100644
index 0000000000..fa32d43ccb
--- /dev/null
+++ b/src/mscorlib/shared/System/Reflection/Missing.cs
@@ -0,0 +1,24 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.Serialization;
+
+namespace System.Reflection
+{
+    [Serializable]
+    public sealed class Missing : ISerializable
+    {
+        public static readonly Missing Value = new Missing();
+
+        private Missing() { }
+
+        void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
+        {
+            if (info == null)
+                throw new ArgumentNullException(nameof(info));
+
+            UnitySerializationHolder.GetUnitySerializationInfo(info, this);
+        }
+    }
+}