diff --git a/usr.bin/rctl/rctl.8 b/usr.bin/rctl/rctl.8
--- a/usr.bin/rctl/rctl.8
+++ b/usr.bin/rctl/rctl.8
@@ -1,4 +1,6 @@
-.\"-
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
 .\" Copyright (c) 2009 Edward Tomasz Napierala
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -22,7 +24,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd February 26, 2018
+.Dd April 26, 2025
 .Dt RCTL 8
 .Os
 .Sh NAME
@@ -57,11 +59,15 @@
 .Ar filter
 argument is specified, only rules matching the filter are displayed.
 The options are as follows:
-.Bl -tag -width indent
+.Bl -tag -width "-l filter"
 .It Fl a Ar rule
 Add
 .Ar rule
 to the RCTL database.
+.It Fl h
+"Human-readable" output.
+Use unit suffixes: Byte, Kilobyte, Megabyte,
+Gigabyte, Terabyte and Petabyte.
 .It Fl l Ar filter
 Display rules applicable to the process defined by
 .Ar filter .
@@ -69,6 +75,8 @@
 any options, as it shows not just the rules with subject equal to that
 of process, but also rules for the user, jail, and login class applicable
 to the process.
+.It Fl n
+Display user IDs numerically rather than converting them to a user name.
 .It Fl r Ar filter
 Remove rules matching
 .Ar filter
@@ -84,12 +92,6 @@
 .Pc
 matching the
 .Ar filter .
-.It Fl h
-"Human-readable" output.
-Use unit suffixes: Byte, Kilobyte, Megabyte,
-Gigabyte, Terabyte and Petabyte.
-.It Fl n
-Display user IDs numerically rather than converting them to a user name.
 .El
 .Pp
 Modifying rules affects all currently running and future processes matching
@@ -234,6 +236,17 @@
 Not all actions are supported for all resources.
 Attempting to add a rule with an action not supported by a given resource will
 result in error.
+.Sh LOADER TUNABLES
+Tunables can be set at the
+.Xr loader 8
+prompt or stored in
+.Xr loader.conf 5 .
+.Bl -tag -width "kern.racct.enable"
+.It Va "kern.racct.enable"
+Enable the resource limiting subsystem.
+Default
+.Ql 0 .
+.El
 .Sh EXIT STATUS
 .Ex -std
 .Sh EXAMPLES