  We compare the results of Grimm et al. (2003) and Ranalli et al. (2003) on
the Lx-SFR relation in normal galaxies. Based on the Lx-stellar mass dependence
for LMXBs, we show, that low SFR (SFR<1 Msun/year) galaxies in the Ranalli et
al. sample are contaminated by the X-ray emission from low mass X-ray binaries,
unrelated to the current star formation activity.
  The most important conclusion from our comparison is, however, that after the
data are corrected for the ``LMXB contamination'', the two datasets become
consistent with each other, despite of their different content, variability
effects, difference in the adopted source distances, X-ray flux and star
formation rate determination and in the cosmological parameters used in
interpreting the HDF-N data. They also agree well, both in the low and high SFR
regimes, with the predicted Lx-SFR dependence derived from the parameters of
the ``universal'' HMXB luminosity function. This encouraging result emphasizes
the potential of the X-ray luminosity as an independent star formation rate
indicator for normal galaxies.
