It is shown that the slow glitches in the spin rate of the pulsar B1822-09 can be explained by the reconstruction of the neutron star shape , which is not matched with the star rotation axis .
Owing to the evolution of the inclination angle , i.e .
the angle between the rotation axis and the axis of the magnetic dipole , under the action of the braking torque , there appears the disagreement between the rotation axis and the symmetry axis .
After the angle between the axis of symmetry and the axis of the rotation achieves the maximum value of \alpha \simeq 2 \cdot 10 ^ { -4 } the shape of the neutron star becomes matching with the rotation axis .
Such reconstruction is observed as the slow glitch .