Erratum: charm quark contribution to K + ! + at next-to-next-to-leading order

We correct the treatment of anomalous triangle diagrams occuring in the ef- fective theory in which the heavy top quark is integrated out. To this end we determine the initial conditions and anomalous dimensions of the operator describing the Z-mediated coupling of neutrinos to quarks and further rectify the bilocal renormalization group evo- lution. Our changes aect the charm-quark contribution Pc(X) at the next-to-leading and next-to-next-to-leading orders, but are numerically negligible as they amout to relative shifts below a permille.