Baltimore selected Huff's contract from Triple-A Norfolk on Sunday.
After re-signing with Baltimore on a minor-league deal on July 3, Huff will rejoin the big club as a third option at catcher behind Adley Rutschman and Samuel Basallo. The 28-year-old has previously seen action in nine games with Baltimore this season, slashing.174/.174/.261 with one RBI and one run across 23 plate appearances.