PHP – skip else statement on boolean

I have command handler that returns approve param which is boolean type and can be true or false. I have specific setters there and I defined it like:

if ($command->approve()) {
        $schedule->setApproval(true);
        $schedule->setApprovalAt(new DateTime());
    } else {
        $schedule->setApproval(false);
        $schedule->setApprovalAt(null);
}

Is there any cleaner approach to this? Can we skip this kind of repetition and using of else clause?