diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index 1514f3b60786..31e2311dd12f 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -2626,6 +2626,16 @@ See
 .Xr init 8
 for the list of possible security levels and their effect
 on system operation.
+.It Va lomac_enable
+.Pq Vt bool
+Set to
+.Dq Li YES
+to enable Low Watermark Mandatory Access Control (LOMAC) at boot time.
+This security model enforces integrity constraints for system processes;
+see
+.Xr mac_lomac 4
+for a complete description of the LOMAC model, as well as its impact
+on system operation.
 .It Va sshd_program
 .Pq Vt str
 Path to the SSH server program