Netflix has issued a warning to viewers against a challenge meme that has gone viral after the success of the horror film “Bird Box.”

The challenge involves fans blindfolding themselves and then trying to navigate surroundings.

Netflix offered this tweet Wednesday.

Can’t believe I have to say this, but: PLEASE DO NOT HURT YOURSELVES WITH THIS BIRD BOX CHALLENGE. We don’t know how this started, and we appreciate the love, but Boy and Girl have just one wish for 2019 and it is that you not end up in the hospital due to memes.

— Netflix US (@netflix) January 2, 2019