Some party members had been seeking to amend the party’s constitution to allow a leadership challenge to be called at any time in order to put Hudak's headship under review.
But delegates voted down that motion and Hudak will keep his job.
However, the convention highlighted some of the concerns from within the party about the challenges that Hudak and the Tories face in getting enough support at the polls to win a general election.
Hudak spent much of Sunday speaking with delegates behind closed doors, working on policy that may inform the party’s policy in the next election, which could come as early as the spring.
At present, the Progressive Conservatives hold 37 seats in the 107-seat Ontario legislature.
That places them behind the governing Liberals (50 seats), but ahead of the third-party New Democrats (20 seats).