Charlie Lee, the creator of Litecoin, tweeted on Monday that he expected Litecoin to hit $14/coin when SegWit* activates. The prediction was tongue-in-cheek, based on obviously funny math, but that didn’t stop cryptocurrency traders from reacting. Litecoin’s price rose 10% shortly after Lee’s tweet, and it’s been steadily climbing since then—to about $12/coin at the time of this post.

*SegWit is a soft fork of Litecoin’s code base that will potentially bring about many benefits if/when it passes. For the fork to happen, 75% of miners need to signal support for SegWit over a two-week period. As of right now, it appears that roughly 70% of miners are on-board.