On Page : https://reasonml.github.io/docs/en/pattern-matching Section: https://reasonml.github.io/docs/en/pattern-matching#more-data-structures <img width="720" alt="Typo error in reasonML doc" src="https://user-images.githubusercontent.com/102915015/177108826-3aa9eccc-4a7f-4b10-a8ed-e98096b19b73.png"> Instead of "r" , "point" should be used inside the variant.