Scanlonian contractualism rejects the consequentialist assumptions about morality, value, and rationality in virtue of which deontological constraints appear paradoxical. And yet, Jeffrey Brand-Ballard and Robert Shaver have claimed that it cannot succeed in defending the said restrictions. That is because they see Scanlon’s tie-breaking argument as threatening to justify aggregation in paradox of deontology cases. I argue that this claim rests upon a failure to appreciate contractualism’s relational character. Once we take this feature of the view into account, it becomes (...) clear that the tie-breaking argument is ruled out in cases where the only way for us to prevent several killings would be to commit one ourselves. To show this, I provide a contractualist explanation of why our duty not to harm persons is stricter than our duty to help them when they are threatened with harm. I conclude by distinguishing two ways in which this defense of deontological restrictions might bring contractualism objectionably close to absolutism. (shrink)