  The anomalous dimension of spin-1/2 baryon operators in QCD is derived at
leading 1/Nf order using the minimal subtraction scheme. A residual ambiguity,
originating from the presence of evanescent operators in dimensional
regularization, is parametrized by a function of the renormalized coupling. Our
result is shown to agree with previous 2 and 3 loop calculations performed in
two different renormalization schemes.
