diff --git a/usr.sbin/jail/jail.8 b/usr.sbin/jail/jail.8
index 407b26df818b..ca7b3f95fdbc 100644
--- a/usr.sbin/jail/jail.8
+++ b/usr.sbin/jail/jail.8
@@ -23,7 +23,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd March 16, 2024
+.Dd June 24, 2024
 .Dt JAIL 8
 .Os
 .Sh NAME
@@ -776,6 +776,14 @@ the jail cannot perform any sysvmsg-related system calls.
 Allow access to SYSV IPC semaphore and shared memory primitives, in the
 same manner as
 .Va sysvmsg .
+.It Va zfs.mount_snapshot
+Allow jailed users to access the contents of ZFS snapshots under the
+filesystem's
+.Pa .zfs
+directory.
+If
+.Va allow.mount.zfs
+is set, the snapshots may also be mounted.
 .El
 .Pp
 There are pseudo-parameters that are not passed to the kernel, but are