  We revisit the XMM-Newton observation of M87 to make a new and more detailed
measurement of the metal abundance profile. After having verified that spectral
fits with single temperature models show a dramatic abundance drop within 1
arcmin of the cluster core, we show that more appropriate models, which include
a multi-temperature component to account for the strong temperature gradient
observed in M87, and a power-law component to account for the emission of the
nucleus and knot A, give a substantially flat abundance profile. The drastic
abundance decrement found by fitting a single temperature component to the data
is an artifact known as "Fe-bias" (Buote 2000a,b) following from the
application of an oversimplified spectral model to the data.
