Abc2Ly + D-sharp minor = problem

[Андрей Ф .]

Hello!
The Abc2Ly converts file.abc with "K:D#m a b c" to "\key dis \minor
aes''  bes''  ces''
"es" instead of "is".
Lilypond 2.18.2
Other keys are OK. Please, fix this. Thank you!

Andrey