  The Neretin group $\mathcal{N}_{d,k}$ is the totally disconnected locally
compact group consisting of almost automorphisms of the tree
$\mathcal{T}_{d,k}$. This group has a distinguished open subgroup
$\mathcal{O}_{d,k}$. We prove that this open subgroup is not of type I. This
gives an alternative proof of the recent result of P.-E. Caprace, A. Le Boudec
and N. Matte Bon which states that the Neretin group is not of type I, and
answers their question whether $\mathcal{O}_{d,k}$ is of type I or not.
