More on KentOnline
Victory slipped from Charlton's grasp on Saturday as they conceded two goals in the final six minutes.
The Addicks were a goal to the good after Johnnie Jackson put them ahead early in the second half.
Chances to extend that lead fell to both Michael Morrison and Scott Wagstaff but both players hit the woodwork.
Wednesday's best opportunity early on went to Reda Johnson but as he slid in on an open goal he managed to put the chance wide.
Johnson made ammends in the second half, as he headed home an equaliser with six minutes left.
And things went from bad to worse for Charlton a minute from time when susbtitute Leroy Lita scored on his Wednesday debut.