Saartje's Bootees - Help Needed!

Hi there…I’m trying to follow this pattern:

http://members.home.nl/tdpj/Patronen/Bootees/Saartjes%20bootees.pdf

I’ve gotten to the end of row 8 and then counted my stitches and I have 50, instead of 51 :help: What can I do? Can I just add one at the end of the row 8? The following rows 9-18 are just knitted, do you think I can just add a stitch in row 9 and just keep going? How big of a difference do you think it’ll make in the overall pattern?

You can add a stitch or just leave it out. I don’t think it will make any difference, either way.