Deselecting the table view row when returning

I followed Luke Redpath's suggestion here - Selected UItableViewCell staying blue when selected - to deselect the row when returning to the original table view, but I can't get it working. In fact the method doesn't get triggered.

- (void)viewDidAppear:(BOOL)animated
{
  [super viewDidAppear:animated];
  [self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}

I suspect this is because the class isn't a UITableViewController, but a UIViewController with the tableView as a property connected up to the NIB.

How would I get the same behavior - ie deselecting when returning?