diff --git a/benchs/distributed_ondisk/distributed_kmeans.py b/benchs/distributed_ondisk/distributed_kmeans.py
index 7c6c2156b3..423f88127c 100644
--- a/benchs/distributed_ondisk/distributed_kmeans.py
+++ b/benchs/distributed_ondisk/distributed_kmeans.py
@@ -1,4 +1,9 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
 #! /usr/bin/env python3
+
 """
 Simple distributed kmeans implementation Relies on an abstraction
 for the training matrix, that can be sharded over several machines.