Why doesn't this /etc/fstab line parse?

From: Larry Rosenman <ler_at_lerctr.org>
Date: Fri, 12 Jul 2024 03:31:47 UTC
I added this to /etc/fstab:
ler-qnap.lerctr.org:/nfsdata /qnap nfs nfsv4,minorversion=1 0 0

and I get:
❯ sudo mount /qnap
fstab: /etc/fstab:5: Inappropriate file type or format
fstab: /etc/fstab:5: Inappropriate file type or format
mount: /qnap: unknown special file or file system

ler in 🌐 playbox in ~
❯

BUT:
ler in 🌐 playbox in /qnap
❯ sudo mount -t nfs -o nfsv4,minorversion=1 ler-qnap.lerctr.org:/nfsdata 
/qnap

ler in 🌐 playbox in /qnap
❯

works why?

14.1-RELEASE amd64.

-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org
US Mail: 13425 Ranch Road 620 N, Apt 718, Austin, TX 78717-1010