1 files changed, 13 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Runtime/CompilerServices/HasCopySemanticsAttribute.cs b/src/mscorlib/src/System/Runtime/CompilerServices/HasCopySemanticsAttribute.cs
new file mode 100644
index 0000000000..5087115730
--- /dev/null
+++ b/src/mscorlib/src/System/Runtime/CompilerServices/HasCopySemanticsAttribute.cs
@@ -0,0 +1,13 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace System.Runtime.CompilerServices
+{
+[Serializable]
+[AttributeUsage(AttributeTargets.Struct)]
+    public sealed class HasCopySemanticsAttribute : Attribute
+    {
+        public HasCopySemanticsAttribute()
+        {}
+    }
+}