[NTG-context] Question about the vim module

\usemodule[vim] \definevimtyping[SHH][syntax=sh] \starttext \startSHH sudo airodump-ng -c channel --bssid target router's mac -w save file name mon0 \stopSHH \stoptext before the bssid there are twohyphen,but the pdf file only have one . How can I fix it? Thanks