  It was recently claimed that the magnetic O-type star HD 54879 exhibits
important radial velocity variability indicative of its presence in a
spectroscopic binary. More remarkably, it was furthermore reported that the
star underwent a short, sudden variation in spectral type and magnetic field.
In this Letter we examine new Narval and ESPaDOnS data of this star in addition
to the previously-published FORS2 data and conclude that both the reported
velocity variations and the sudden spectral and magnetic changes are spurious.
