  Hot star wind mass-loss rates depend on the abundance of individual elements.
This dependence is usually accounted for assuming scaled solar chemical
composition. However, this approach may not be justified in evolved rotating
stars. The rotational mixing brings CNO-processed material to the stellar
surface, increasing the abundance of nitrogen at the expense of carbon and
oxygen, which potentially influences the mass-loss rates. We study the
influence of the modified chemical composition resulting from the rotational
mixing on the wind parameters, particularly the wind mass-loss rates. We use
our NLTE wind code to predict the wind structure and compare the calculated
wind mass-loss rate for the case of scaled solar chemical composition and the
composition affected by the CNO cycle. We show that for a higher mass-fraction
of heavier elements $Z/Z_\odot\gtrsim0.1$ the change of chemical composition
from the scaled solar to the CNO-processed scaled solar composition does not
significantly affect the wind mass-loss rates. The missing line force caused by
carbon and oxygen is compensated for by nitrogen line force. However, for a
very low-mass fraction of heavier elements $Z/Z_\odot\lesssim0.1$ the
rotational mixing significantly affects the wind mass-loss rates. Moreover, the
decrease of the mass-loss rate with metallicity is stronger at such low
metallicities. We study the relevance of the wind momentum-luminosity
relationship for different metallicities and show that for a metallicity
$Z/Z_\odot\lesssim0.1$ the relationship displays a large scatter, which
depreciates the use of this relationship at the lowest metallicities.
