The Celtic defender is keen for the club to keep the 'big talent' on board.
Guidetti is out of contract at the end of the season and Celtic are keen to tie him down to a permanent deal, although boss Ronny Deila has admitted there will be nothing final this month.
And Lustig is appreciative of the talent the 22-year-old striker possesses, sending the message to the Swedish striker that he and his team-mates all want him to stay with the Bhoys.
ML on Guidetti: "He's a really big talent and of course we want him to stay."— Celtic Football Club (@celticfc) January 22, 2015
Lustig enjoyed a heroic return to fitness with Celtic yesterday, scoring two second-half goals during a 4-0 win over Motherwell that took the Hoops back to the summit of the SPL.
The defender admitted him scoring is not quite the frequent occurrence he would hope for but also singled out team-mate Adam Matthews for praise.
Matthews was on the scoresheet for Celtic last weekend, netting with a stunning strike from distance.
ML: "It's not that usual that I'd score goals but Adam Matthews has been really sharp too."— Celtic Football Club (@celticfc) January 22, 2015
Celtic are now one point clear of second-placed Aberdeen, with a game also in hand over the Dons.