diff --git a/client-sdks/stainless/config.yml b/client-sdks/stainless/config.yml
index ab9342c49..c61b53654 100644
--- a/client-sdks/stainless/config.yml
+++ b/client-sdks/stainless/config.yml
@@ -463,6 +463,12 @@ resources:
 settings:
   license: MIT
   unwrap_response_fields: [data]
+  file_header: |
+    Copyright (c) Meta Platforms, Inc. and affiliates.
+    All rights reserved.
+
+    This source code is licensed under the terms described in the LICENSE file in
+    the root directory of this source tree.
 
 openapi:
   transformations: