St Mirren bagged their first home Premiership win since early February to cement their place in the top flight next season.
Former Saints midfielder Charlie Adam did his old side a huge turn when he gifted the hosts an unbelievably easy opener. His hospital pass across his own box was duly fired in by Alex Greive, who couldn't quite believe his luck when the ball reached him unmarked to slot home.
Dundee battled back and threatened an equaliser early in the second half, with Jak Alnwick pulling off two brave saves to keep the Buddies ahead.
