diff --git a/README.md b/README.md
index e8f4cbe..c206e0a 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,19 @@ let instance = entry.create_instance(&create_info, None).expect("Instance");
 let devices = instance.enumerate_physical_devices();
 println!("{:?}", devices);
 ```
+
+## License
+
+Licensed under either of
+
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.