diff --git a/HowtoProFTPD.md b/HowtoProFTPD.md
index 4735c63d..5f79c1ed 100644
--- a/HowtoProFTPD.md
+++ b/HowtoProFTPD.md
@@ -355,7 +355,8 @@ DefaultRoot  ~
 SFTPLog      /var/log/proftpd/sftp.log
 
 SFTPAuthMethods password publickey
-SFTPHostKey /etc/ssh/ssh_host_ed25519_key
+# ProFTPD doesn't support ed25519 yet
+#SFTPHostKey /etc/ssh/ssh_host_ed25519_key
 SFTPHostKey /etc/ssh/ssh_host_ecdsa_key
 SFTPHostKey /etc/ssh/ssh_host_rsa_key