1 files changed, 17 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ComDefaultInterfaceAttribute.cs b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ComDefaultInterfaceAttribute.cs
new file mode 100644
index 0000000000..1b84f5f561
--- /dev/null
+++ b/src/System.Private.CoreLib/shared/System/Runtime/InteropServices/ComDefaultInterfaceAttribute.cs
@@ -0,0 +1,17 @@
+// 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.
+
+namespace System.Runtime.InteropServices
+{
+    [AttributeUsage(AttributeTargets.Class, Inherited = false)]
+    public sealed class ComDefaultInterfaceAttribute : Attribute
+    {
+        public ComDefaultInterfaceAttribute(Type defaultInterface)
+        {
+            Value = defaultInterface;
+        }
+
+        public Type Value { get; }
+    }
+}