Ex-Liverpool defender Daniel Agger was at fault for Scotland's winner as Gordorn Strachan's side battled to a 1-0 victory at Hampden Park.
Matt Ritchie's early strike ensured Scotland secured back-to-back friendly wins as it edged past Denmark with a 1-0 victory at Hampden Park on Tuesday.
A bright start saw the host take an eighth-minute lead when Daniel Agger's mistake allowed Ritchie to latch on to Scott Brown's threaded pass and slot home.
Nicolai Jorgensen tested Craig Gordon with a low drive before the break, with the goalkeeper popping up again to make a superb double save 16 minutes from time, while only a last-ditch block prevented Ritchie adding a second late on.