Jason - Disk Label

I have a ZFS pool on FreeBSD 11.0,

config:
	NAME           STATE     READ WRITE CKSUM
	zroot          ONLINE       0     0     0
	 mirror-0     ONLINE       0     0     0
	   gpt/disk0  ONLINE       0     0     0
	   ada1p2     ONLINE       0     0     0

Where the partitions were labeled with,

gpart add -a 4k -t freebsd-zfs -l disk0 ada0
gpart add -a 4k -t freebsd-zfs -l disk1 ada1

Though, for some reason, the GPT label disk1 doesn't show, e.g.

# ls -l /dev/gpt
total 0
crw-r-----  1 root  operator  0xa3 Jan 15 16:34 disk0

There is a mention of the kernel module geom_label.ko in GLABEL(8), which is not loaded:

# kldstat
Id Refs Address            Size     Name
 1   50 0xffffffff80200000 1ee2108  kernel
 2    1 0xffffffff820e4000 30aec0   zfs.ko
 3    2 0xffffffff823ef000 adc0     opensolaris.ko
 4    1 0xffffffff823fa000 b3e8     aesni.ko
 5    1 0xffffffff82406000 3a78     cc_htcp.ko
 6    1 0xffffffff8240a000 9ebd8    t5fw_cfg.ko
 7    1 0xffffffff824a9000 77b40    if_cxgbe.ko
 8    1 0xffffffff82621000 49e25    ctl.ko
 9    1 0xffffffff8266b000 ea37     iscsi.ko

Is there a way to get the GPT label disk1 to show up on the system?

Thanks for the great shows.
Jason