Chris Innes struck 14 minutes from time to give Kilmarnock a vital 1-0 win at Dundee and end the Dark Blues' post-winter break unbeaten record.
Dundee went close a couple of times early on when Mark Burchill and then Barry Smith both fired efforts just off target.
Midway through the first half Dundee keeper Julian Speroni did well to block a close-range effort from Innes.
Ten minutes before half time a good through ball by Andy McLaren sent James Fowler through on goal but the strikers effort was saved by Speroni.
A shot on the run by Nacho Novo went wide of the target five minutes before half time.
Five minutes after the interval Dundee defender David Mackay made a great run upfield and after a one-two with Gavin Rae he put himself in a great posistion inside the box, but his right-foot shot was turned around the post by Gordon Marshall.
Midway throught the second half Kilmarnock were looking for a penalty kick when Gary McSwegan crashed to the ground after a tackle by Lee Mair, but the referee waved play on.
With 16 minutes remaining the visitors took the lead when centre-half Innes scored from ten yards after seeing his first two efforts blocked by Dundee defenders.
Ten minutes from time Marshall saved low to his right to deny Fabian Caballero.
The Dundee striker almost snatched a point for his team right at the death when he got his head to Beto Carranza's corner, but Marshall saved on the line as the visitors held on and brought to an end Dundee's 14-game unbeaten run.