  We present the next-to-leading-order calculation of the partial decay widths
of the light CP-even Higgs boson decaying into four fermions in the
Two-Higgs-Doublet Model. The four different renormalization schemes applied in
the calculation are described as well as the calculation and its implementation
into the analysis tool Prophecy4f. Some sample results show the size of the
next-to-leading-order correction as well as the overall size of the deviation
from the Standard Model prediction.
