diff --git a/Cargo.toml b/Cargo.toml
index 1ac634a..187186f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,8 @@
+#  This Source Code Form is subject to the terms of
+#  the Mozilla Public License, v. 2.0. If a copy of the
+#  MPL was not distributed with this file, You can
+#  obtain one at https://mozilla.org/MPL/2.0/.
+
 [package]
 name = "libips"
 version = "0.1.0"