diff --git a/backends/xnnpack/test/quantizer/test_pt2e_quantization.py b/backends/xnnpack/test/quantizer/test_pt2e_quantization.py
index 7155a972a41..ea6116a6f0a 100644
--- a/backends/xnnpack/test/quantizer/test_pt2e_quantization.py
+++ b/backends/xnnpack/test/quantizer/test_pt2e_quantization.py
@@ -1,4 +1,8 @@
-# (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree
 
 # pyre-unsafe
 
diff --git a/exir/_serialize/padding.py b/exir/_serialize/padding.py
index 181dbbccd1f..cc294bcc1fa 100644
--- a/exir/_serialize/padding.py
+++ b/exir/_serialize/padding.py
@@ -1,4 +1,8 @@
-# (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree
 
 # pyre-strict
 
diff --git a/exir/passes/quantize_io_pass.py b/exir/passes/quantize_io_pass.py
index 21ac4c868a3..64b6c14d75e 100644
--- a/exir/passes/quantize_io_pass.py
+++ b/exir/passes/quantize_io_pass.py
@@ -1,4 +1,9 @@
-# (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree
+
 import logging
 from typing import Any, Dict, List, Optional, Union