diff --git a/README.md b/README.md
index 9ceeb61..60be9ce 100644
--- a/README.md
+++ b/README.md
@@ -56,4 +56,10 @@ I really thank the following authors:
 
 * [Arkenfox](https://github.com/arkenfox/user.js) - The majority of this user.js and updates.
 * [Quindecim](https://git.nixnet.xyz/quindecim/mobile_user.js) - Some unique strings.
-* [Spyware Watchdog](https://web.archive.org/web/20200402031335/https://spyware.neocities.org/guides/firefox.html) - Mozilla Firefox Spyware Mitigation Guide (Archive.org)
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+* [Spyware Watchdog](https://web.archive.org/web/20200402031335/https://spyware.neocities.org/guides/firefox.html) - Mozilla Firefox Spyware Mitigation Guide (Archive.org)
+
+## License
+
+GNU General Public License v3.0.
+
+See `LICENSE` for more details.
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