[7.3/i386] pf-badhost - Illegal instruction (core dumped)

Hello,
I am getting the following error message when I try to run pf-badhost script [1] at fresh install 7.3/i386. Have I missed something?

1. https://www.geoghegan.ca/pub/pf-badhost/latest/install/openbsd.txt

test73# doas -u _pfbadhost pf-badhost -O openbsd
doas (root@test73.my.domain) password:
Illegal instruction
Illegal instruction
Illegal instruction
Illegal instruction
Illegal instruction
Illegal instruction
Illegal instruction (core dumped)
Illegal instruction (core dumped)
Illegal instruction (core dumped)
Illegal instruction (core dumped)

No blocklist changes...
Illegal instruction (core dumped)

pf-badhost:
IPv4 addresses in table: 0


Radek