Local Metadata – Poster.jpg

I have kodi set to reading local nfo on my TV-Series
This is the folder structure:

Media-File – Apprentice – Season 1………episode 1.avi
……………………………poster.jpg……….episode 1.nfo
……………………………show.nfo………..episode 2.avi
……………………………………………….episode 2.nfo

My problem is poster.jpg will not display, am I right in thinking this structure should work?
Cheers