error when trying to split

Hi,

DATA: lv_zbnkl(8) TYPE c.

Data: l_chr(15) type c. ß-- NUMBER is SAME AS zbnkl LENGTH

Write i_reguh.-zbnkl to l_chr

IF L_CHR CA '-'.

SPLIT L_CHR AT '-' INTO lv_zbnkl.---->error

endif.

I am using above code but it is throwing an eror saying that unable to interpret lv_zbankl.