Gambling Winnings from Cruise Ship

Last year, while on a cruise, I hit a jackpot on a slot machine in the ship's casino.  It was a Carnival ship, and they mailed me out a W-2.  I know to claim it on my return.  But this year, Turbo Tax is asking me if I had any income in any state besides Pennsylvania (which is where I live).

 

At the time I won the jackpot, the ship was en route from Amber Cove (Dominican Rep.) to Grand Turk, and obviously, that response is not given in the drop-down menu.  How do I answer that?