  We calculate the C=P=-1 contribution to high-energy scattering of hadrons in
the framework of the model of the stochastic vacuum. In models, where the
pomeron is generated by a two gluon exchange, this odderon contribution comes
from a three gluon exchange and is much too large as compared to experimental
data for pp- and $p\bar{p}$-scattering. In our model, where we have no
quark-additivity, the hadron structure is very important. It is shown that a
natural suppression of the odderon contribution is given by a diquark-structure
of the nucleon.
