diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
index 9b56d15f109..a972c720dfd 100644
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c
@@ -100,7 +100,7 @@ static struct zfs_jailparam zfs_jailparam0 = {
 static int zfs_jailparam_slot;
 
 SYSCTL_JAIL_PARAM_SYS_NODE(zfs, CTLFLAG_RW, "Jail ZFS parameters");
-SYSCTL_JAIL_PARAM(_zfs, mount_snapshot, CTLTYPE_INT | CTLFLAG_RW, "B",
+SYSCTL_JAIL_PARAM(_zfs, mount_snapshot, CTLTYPE_INT | CTLFLAG_RW, "I",
 	"Allow mounting snapshots in the .zfs directory for unjailed datasets");
 
 SYSCTL_NODE(_vfs_zfs, OID_AUTO, version, CTLFLAG_RD, 0, "ZFS versions");
diff --git a/usr.sbin/jail/jail.8 b/usr.sbin/jail/jail.8
index 75a0b86eed4..7fc5357adfd 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 August 12, 2024
+.Dd September 19, 2024
 .Dt JAIL 8
 .Os
 .Sh NAME
@@ -763,8 +763,8 @@ 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
+When set to 1, jailed users may access the contents of ZFS snapshots
+under the filesystem's
 .Pa .zfs
 directory.
 If