diff --git a/api/include/opentelemetry/http/http_client.h b/api/include/opentelemetry/http/http_client.h
index 757c6dd3c5..bb60a5e8fa 100644
--- a/api/include/opentelemetry/http/http_client.h
+++ b/api/include/opentelemetry/http/http_client.h
@@ -1,3 +1,5 @@
+// Copyright (c) Microsoft. All rights reserved
+
 #pragma once
 
 #include "opentelemetry/nostd/string_view.h"
diff --git a/sdk/include/opentelemetry/sdk/http/http_client.h b/sdk/include/opentelemetry/sdk/http/http_client.h
index ee4347578c..7903e2663a 100644
--- a/sdk/include/opentelemetry/sdk/http/http_client.h
+++ b/sdk/include/opentelemetry/sdk/http/http_client.h
@@ -1,3 +1,5 @@
+// Copyright (c) Microsoft. All rights reserved.
+
 #pragma once
 #include "opentelemetry/http/http_client.h"
 #include "opentelemetry/version.h"