  We propose low-energy antideuterons in cosmic rays as a new possible
signature for indirect detection of supersymmetric dark matter.
  Since the energy spectrum of the antiproton secondary component is still
spoilt by considerable theoretical uncertainties, looking for low-energy
antideuterons seems a plausible alternative.
  We apply our calculation to the AMS experiment, when mounted on the
International Spatial Station. If a few low-energy antideuterons will be
discovered by AMS, this should be seriously taken as a clue for the existence
of relic, massive neutralinos in the dark halo of our Galaxy.
