diff --git a/src/proto/option.pro b/src/proto/option.pro
index be7ee95..69463d4 100644
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -139,7 +139,7 @@
 int can_bs(int what);
 long get_scrolloff_value(void);
 long get_sidescrolloff_value(void);
-unsigned int get_bkc_value(buf_T *buf);
+unsigned int get_bkc_flags(buf_T *buf);
 char_u *get_flp_value(buf_T *buf);
 unsigned int get_ve_flags(void);
 char_u *get_showbreak_value(win_T *win);