Iain Davidson's second-half goal kept Dundee a point clear at the top of the Scottish Championship as Queen of the South were beaten at Dens Park.
The midfielder powered home a header from Jim McAlister's free-kick to edge the hosts ahead.
Martin Boyle had earlier threatened with a shot that was saved by Queens goalkeeper Alex Clark.
And Boyle had a chance to double Dundee's lead late on but was again foiled by Clark.
Lineup, Bookings (2) & Substitutions (5)
Dundee
- 01 Letheren
- 02 Irvine
- 05 Dyer
- 06 Davidson
- 25 Cummins
- 18 Gallagher
- 23 Boyle
- 10 Rae
- 09 MacDonald (Conroy - 81' )
- 20 McAlister
- 07 Riley (Nade - 73' )
Substitutes
- 03 Lockwood
- 11 Conroy
- 16 Doris
- 22 Reid
- 24 Twardzik
- 27 Nade
- 29 Beattie
Queen of the South
- 01 Clark
- 02 Mitchell Booked
- 06 Dowie
- 04 McShane (Russell - 74' )
- 03 Higgins Booked
- 05 Durnan
- 07 Burns
- 08 Kerr
- 10 Reilly (McHugh - 80' )
- 09 Lyle
- 11 Paton (Carmichael - 74' )
Substitutes
- 12 Atkinson
- 14 McHugh
- 15 Russell
- 16 Carmichael
- 17 McKenna
- 18 Kidd
- 19 Holt