  It is shown that in magnetic superconductors with spiral magnetic order the
Josephson current has an additional contribution which depends: (i) on the
relative orientation (magnetic phase) $\theta =\theta_{L}-\theta_{R}$ of
magnetizations on the left ($L$) and right ($R$) banks of the contact, (ii) on
the junction helicity $\chi =\chi_{L}\chi_{R}$, (with spiral helicity $\chi
_{L(R)}=\pm 1$), i.e. $J=[J_{c}-J_{\chi}\cos \theta ]\sin \phi $ with $\phi
=\phi_{L}-\phi_{R}$. The ratio $R_{\chi}\equiv J_{\chi}/J_{c}$ is calculated as
a function of the superconducting order parameter $\Delta $, the exchange field
energy $h$ and the wave vector $Q$ of the spiral magnetic structure. The $\pi
$-Josephson contact can be realized in such a system in some region of
parameters. Some possible consequences of this new phase relation is also
analyzed.
