diff --git a/README.md b/README.md
index 964d206..df3607b 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,8 @@ causing degradation or information loss by bit flipping. Written in ISO C99.
 
 ## License
 
-Dual-licensed under the [Unlicense](http://unlicense.org)
-([`LICENSE`](LICENSE)) and Creative Commons Zero 1.0 Universal
-([`COPYING`](COPYING)).
+Dual-licensed under the [Creative Commons Zero 1.0 Universal][CC0-1.0]
+([`COPYING`](COPYING)) or [Unlicense][Unlicense] ([`LICENSE`](LICENSE)).
+
+[CC0-1.0]: https://creativecommons.org/publicdomain/zero/1.0/legalcode
+[Unlicense]: https://unlicense.org