diff --git a/documentation/content/en/books/handbook/jails/_index.adoc b/documentation/content/en/books/handbook/jails/_index.adoc
--- a/documentation/content/en/books/handbook/jails/_index.adoc
+++ b/documentation/content/en/books/handbook/jails/_index.adoc
@@ -227,7 +227,6 @@
     host.hostname = www.example.org;           # Hostname
     ip4.addr = 192.168.0.10;                   # IP address of the jail
     path = "/usr/jail/www";                    # Path to the jail
-    devfs_ruleset = "www_ruleset";             # devfs ruleset
     mount.devfs;                               # Mount devfs inside the jail
     exec.start = "/bin/sh /etc/rc";            # Start command
     exec.stop = "/bin/sh /etc/rc.shutdown";    # Stop command