diff --git a/config/jail.conf b/config/jail.conf
index a306e7ec..b0ed6355 100644
--- a/config/jail.conf
+++ b/config/jail.conf
@@ -771,11 +771,10 @@ maxretry = 1
 [pass2allow-ftp]
 # this pass2allow example allows FTP traffic after successful HTTP authentication
 port         = ftp,ftp-data,ftps,ftps-data
+# knocking URL needs to be customized in apache-pass.local
 filter       = apache-pass
 # access log of the website with HTTP auth
 logpath      = %(apache_access_log)s
-# knocking URL needs to be customized per each deployment
-knocking_url = /secret-knocking-url
 blocktype    = RETURN
 returntype   = DROP
 bantime      = 3600