nim ncurses error

curs.nim:
import ncurses

let wnd = initscr()
noecho()
endwin()


nim c curs.nim
Hint: used config file '/etc/nim/nim.cfg' [Conf]
Hint: system [Processing]
Hint: widestrs [Processing]
Hint: io [Processing]
Hint: curs [Processing]
Hint: ncurses [Processing]
/home/madpat/.nimble/pkgs/ncurses-1.0.0/ncurses.nim(237, 32) template/generic instantiation of `NCURSES_BITS` from here
/home/madpat/.nimble/pkgs/ncurses-1.0.0/ncurses.nim(84, 16) Error: 18446744073709551615 can't be converted to chtype