  We prove that any dendrite map for which the set of endpoints is closed and
countable fulfilled Sarnak M\"{o}bius disjointness. This extended a result by
el Abdalaoui-Askri and Marzougui \cite{ela-GH}. We further notice that the
Smital-Ruelle property can be extended to the class of dendrites with closed
and countable endpoints.
