diff --git a/size-graph.py b/size-graph.py
index c2a1962ce..774ea6135 100644
--- a/size-graph.py
+++ b/size-graph.py
@@ -1,3 +1,8 @@
+# This file is part of the uutils coreutils package.
+#
+# For the full copyright and license information, please view the LICENSE
+# file that was distributed with this source code.
+
 from datetime import datetime
 from email.utils import parsedate