diff --git a/README-GPG.md b/README-GPG.md
index 62c54b7..5e9d7f3 100644
--- a/README-GPG.md
+++ b/README-GPG.md
@@ -2,7 +2,7 @@ Note: the GPG-related code is still under development, so please try the current
 and please let me [know](https://github.com/romanz/trezor-agent/issues/new) if something doesn't
 work well for you. If possible:
 
- * record the session (e.g. using [asciinema](asciinema.org))
+ * record the session (e.g. using [asciinema](https://asciinema.org))
  * attach the GPG agent log from `~/.gnupg/{trezor,ledger}/gpg-agent.log`
 
 Thanks!