Dundee booked their place in the second round of the Ramsdens Cup with a narrow win.
The Wasps almost took the lead early on, but Andrew Kirk's header was cleared off the line at the back post.
Ryan Conroy had the best chance of the first half for Dundee but fired wide.
Dundee carved out the winner when Carlo Monti, fouled in the box by Daryll Meggatt, dusted himself down before scoring from the spot.
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