The Serbian side took the lead in the second qualifying round first leg clash when captain Sasa Ilic fired home early in the second half.
But the Swedish champions grabbed a vital away goal in the 72nd minute through Rene Makonoele to give themselves the advantage ahead of the next week’s second leg in Stockholm.
However the tie is still very much in the balance with Partizan widely reported as being easily the better side in the first leg.