  A consistent set of asymptotic conditions for higher spin gravity in three
dimensions is proposed in the case of vanishing cosmological constant. The
asymptotic symmetries are found to be spanned by a higher spin extension of the
BMS3 algebra with an appropriate central extension. It is also shown that our
results can be recovered from the ones recently found for asymptotically AdS3
spacetimes by virtue of a suitable gauge choice that allows to perform the
vanishing cosmological constant limit.
