  The shift of the p-wave $D_s$ meson mass due to coupling to the DK channel is
calculated without fitting parameters using the chiral Lagrangian. As a result
the original $Q\bar q$ mass 2.490 MeV generically calculated in the
relativistic quark models is shifted down to the experimental value 2317 MeV.
With the same Lagrangian the shift of the radial excited $1^-$ level is much
smaller, while the total width $\Gamma > 100$ MeV and the width ratio is in
contradiction with the $D^*(2632)$ state observed by SELEX group.
