However, City suffered a frustrating evening at Westwood Road.
Despite dominating large parts of the match, City were unable to breach a well-drilled visiting defence.
After a goalless opening 45 minutes, it was the visitors who broke the deadlock after 65 minutes through Leon Cashman.
And then in the 85th minute, AFC Dunstable confirmed victory that lifted them up to fourth place, a point behind City, when Jermaine Hall added the second goal.
By Steve Whitney
Keep up-to-date with our exclusive email newsletters.
Subscribe