  We reexamine the derivation of the leading order QCD evolution equations of
twist-3 quark-gluon correlation functions, $T_{q,F}(x,x)$ and
$T^{(\sigma)}_{q,F}(x,x)$, which are the first transverse-momentum-moment of
the naive-time-reversal-odd parton distribution functions - the Sivers and
Boer-Mulders function, respectively. The evolution equations were derived by
several groups with apparent differences. We identify the sources that are
responsible for the differences, and are able to reconcile the results from
various groups.
