Sliders & Other Square Jigsaw Puzzles Typo?

Did I find a typo or am I not thinking clearly? In S&OSJP, Box Lists, II-2, Winter, the list includes the word “sweter.” Hummm, that’s not in my dictionary. I think I found a typo that should have been “sweater”! Aw, Joe, you will do anything to keep me on my toes. Love your games. REALLY LOVE sliders!! I have them all and play them again and again!