Juventus needed an unfortunate Edoardo Goldaniga own goal to squeeze past Palermo 1-0 and preserve their Serie A lead.
The reigning champions replaced Napoli as the early season leaders with a 4-0 midweek thrashing of Cagliari but found Palermo goalkeeper Josip Posavec a largely immovable object at La Favorita.
Centre-back Goldaniga tried to do the under-siege stopper a favour in the 49th minute, yet Dani Alves' attempt ending up in the back of the net as a result of his intervention.
Massimiliano Allegri's men reached the 15-point mark after six games while Palermo are down in 16th.
Marek Hamsik later scored his 100th goal for Napoli as the title challengers beat Chievo 2-0.
After Manolo Gabbiadini got the ball rolling at the San Paolo, Slovakian schemer Hamsik hit a major career landmark to rubber-stamp the three points, which keep Napoli just behind Juve.