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In a recent paper we showed that the decay of intermediate $\bar{\Lambda}_b$baryons can dramatically enhance the antihelium flux from dark matterannihilation. Our antihelium predictions were derived using severalimplementations of the Pythia and Herwig event generators which were calibratedto existing data on antideuteron and antihelium formation. Kachelriess et al.have argued for a smaller antihelium flux compared to our most optimistic MonteCarlo model. However, we show that the arguments by Kachelriess et al. areeither incorrect or irrelevant for antihelium formation. Thus, the results ofour original paper remain unchanged.

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