Wonky ribbing

I have a problem with my ribbing. If you look at it from left to right, the last stitch on each column of knits is loose. All other stitches are even. I’m also knitting in the round, if that makes a difference. I am on vacation right now and unfortunately forgot my “fix-it” book, so I need your help.:aww: I plan on knitting [I]Viveka[/I] from [I]Knitty [/I]over vacation, and that has a lot of ribbing, so I want it to look nice and mine doesn’t right now.
I’ve been knitting for a couple years now, and I should know how to fix this, but I don’t. Any suggestions?
TIA!:hug:

Usually ribbing is knit a little tighter than the main sweater body. You could also wrap the purl st right after the knit column the opposite way; that will twist it and tighten up the knit st a little too.