It's technically Wushu, but I assume that "kung fu" is interpreted broadly here.
Well, considering that there is no real one definitive style from China (unlike Karate from Japan, Muay Thai from Thailand, TKD from Korea), they all just get lumped into Kung Fu, which essentially means "Chinese martial arts," do you agree? But I agree, when I tell people that I study Wushu, they say what's that? I say, Kung fu! Didn't the phrase "Kung Fu" just get popularized because of the TV series?