  In this letter we present the results of the exact computation of
contributions to the Higgs boson decay into bottom quarks that are proportional
to the top Yukawa coupling. Our computation demonstrates that approximate
results already available in the literature turn out to be particularly
accurate for the three physical mass values of the Higgs boson, the bottom and
top quarks. Furthermore, contrary to expectations, the impact of these
corrections on differential distributions relevant for the searches of the
Higgs boson decaying into bottom quarks at the Large Hadron Collider is rather
small.
