  Recent lattice analyses of the $D\pi$ scattering by Hadron Spectrum
Collaboration(HadSpec) report only one pole in the $D_0^*$ channel. This is in
odds with the unitarised chiral perturbation theory analyses, which predict the
$D_0^*(2300)$ as the interplay of two poles. We provide an explanation for this
contradiction $-$ the exsistence of a hidden pole. We further show that the
hidden pole can be better extracted from the lattice data by imposing SU(3)
flavour constraints on the fitting amplitudes.
