The 25-year-old was expected to leave this summer, but a move has ultimately failed to develop for the Serbia international.
Vlahovic came on in the latter stages of their Serie A opener against Parma, replacing new signing Jonathan David, before scoring in the 84th minute.
Now, Juventus sporting director Comolli has had a change of heart, saying: “We can say that at 99% Dušan Vlahović will stay with us this season”.
Serie A rivals AC Milan had been linked with a move for the striker but have settled on a deal for Chelsea forward Christopher Nkunku.