diff --git a/onnxruntime/core/providers/dml/DmlExecutionProvider/src/GraphKernelHelper.h b/onnxruntime/core/providers/dml/DmlExecutionProvider/src/GraphKernelHelper.h
index 63efb58300..d52d2e6708 100644
--- a/onnxruntime/core/providers/dml/DmlExecutionProvider/src/GraphKernelHelper.h
+++ b/onnxruntime/core/providers/dml/DmlExecutionProvider/src/GraphKernelHelper.h
@@ -1,3 +1,8 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#pragma once
+
 #include "GraphDescBuilder.h"
 
 namespace Dml