It is shown that in large-deformation plasticity the maximum-dissipation postulate is equivalent to a six-dimensional and not a nine-dimensional normality rule, just as in small-deformation plasticity. When the multiplicative decomposition of deformation, based on the concept of an intermediate 'configuration', is used, and with respect to variables referred to this 'configuration', the normality rule is an equation for the projection of the plastic distortion rate onto a six-dimensional subspace of the space of second-rank tensors.