Dundee 2-0 Greenock Morton
Christian Nade scored his first goal for Dundee as the Scottish Championship leaders maintained their one-point advantage with victory over Morton.
The former Hearts striker got on the end of Martin Boyle's cross to head the hosts in front.
Dundee continued to ask questions of the league's basement side but were often foiled by keeper Derek Gaston.
However, Peter MacDonald doubled the Dark Blues' lead late on when he drilled home.