diff --git a/README.md b/README.md
index 0622787..18440bd 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,8 @@ If you have managed to set it up or experienced issues with this guide,
 feel free to shoot an email to my [public inbox][public-inbox] or tag
 `@yerinalexey@mastodon.online` on Fediverse.
 
+[public-inbox]: https://lists.sr.ht/~yerinalexy/public-inbox
+
 # TODO
 - Proper language selector
 - Dark theme