Yea, thats what I was saying, I tried without quotes as well.
Basically below is what I have:

$acnsex = new Expect();
$acnsex->slave->stty(qw(cols 200));
$acnsex->spawn("ssh -q -o 'UserKnownHostsFile ./output/keys.txt' -o 'S
+trictHostKeyChecking no' -l $username $acns");
$acnsex->log_user(0);
$acnsex->expect(10, '-re', 'password:');
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