  $\Lambda^+_c$ hypernuclei are expected to have binding energies and other
properties similar to those of strange hypernuclei in view of the similarity
between the quark structures of the strange and charmed hyperons, namely
$\Lambda(uds)$ and $\Lambda^+_c (udc)$. One striking difference however occurs
in their mesonic decays, as there is almost no Pauli blocking in the nucleonic
decay of a charm hypernucleus because the final-state nucleons leave the
nucleus at high energies. The nuclear medium nevertheless affects the mesonic
decays of charm hypernucleus because the nuclear mean fields modify the masses
of the charm hyperon. In the present communication we present results of a
first investigation of the effects of finite baryon density on different weak
mesonic decay channels of the $\Lambda^+_c$ baryon. We found a non-negligible
reduction of the decay widths as compared to their vacuum values.
