  Hadron production in proton-nucleus (pA) collisions was previously shown to
be suppressed by medium-induced fully coherent energy loss (FCEL). We show that
the quenching of $D$ and $B$ mesons in pPb collisions at the LHC due solely to
FCEL is, at least, on par with other nuclear effects such as gluon shadowing or
saturation. This is consistent with previous findings for both quarkonium and
light hadron production in pA collisions, emphasising that FCEL effects need to
be included for a reliable understanding of hadron production measurements in
pA collisions.
