  The magnetic moment of the $\Lambda \to \Sigma^0$ transition between negative
parity, baryons is calculated in framework of the QCD sum rules approach, using
the general form of the interpolating currents. The pollution arising from the
positive--to--positive, and positive to negative parity baryons are eliminated
by constructing the sum rules for different Lorentz structures. Nonzero value
of the considered magnetic moment can be attributed to the violation of the
$SU(3)$ symmetry.
