diff --git a/scripts/simple_login.exp b/scripts/simple_login.exp
index 9abb3ab..c112a62 100755
--- a/scripts/simple_login.exp
+++ b/scripts/simple_login.exp
@@ -1,4 +1,8 @@
 #!/bin/expect -f
+# 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.
 
 set timeout 1
 spawn cargo run --example simple_login