cannot view custom manual pages

[freethread]

I installed a port that is not in FreeBSD ports and manually copied and enabled some normal functions, like manual pages. I created a file in /usr/local/etc/man.d that contains

MANPATH /path/to/custom/manpages

the files in that directory are manual pages (*.1, *.3, and so on) but man does not find them. If I type manpath the path is included in the list.
What I missed?

 

[freethread]

Solved, created man1, man3, etc. directories in the man path and moved all *.1 files in man1, *.3 in man3, etc.