This work analyses the argument provided by Nozick in support of the State's legitimacy. It will beheld that, in fact, this argument deals with two different difficulties: a descriptive one (the harmless and unintended emergence of the State) and another de jure (the legitimacy of the State). The first one is resolved by Nozick via the invisible-hand explanation, and the second one via so-called principle of compensation. I will attempt to demonstrate that this principle is consistent with Locke's political philosophy and, therefore, with locicean libertarianism.