UK supermarket Tesco listed and quickly removed information on an unannounced Call of Duty game, Call of Duty: Ghosts, on its website.
It's not the first time we've heard the name mentioned. Call of Duty: Ghosts' logo was previously spotted in an advert for US retailer Target.
There, the game was again listed for PS3 and Xbox 360, and given a 5th November 2013 release date.
Activision declined to comment when contacted by Eurogamer.