diff --git a/src/proto/highlight.pro b/src/proto/highlight.pro
index 61cea36..4a8ea3c 100644
--- a/src/proto/highlight.pro
+++ b/src/proto/highlight.pro
@@ -44,6 +44,12 @@
 char_u *get_highlight_name_ext(expand_T *xp, int idx, int skip_cleared);
 void free_highlight_fonts(void);
 void clear_matches(win_T *wp);
+void init_search_hl(win_T *wp, match_T *search_hl);
+void prepare_search_hl(win_T *wp, match_T *search_hl, linenr_T lnum);
+int prepare_search_hl_line(win_T *wp, linenr_T lnum, colnr_T mincol, char_u **line, match_T *search_hl, int *search_attr);
+int update_search_hl(win_T *wp, linenr_T lnum, colnr_T col, char_u **line, match_T *search_hl, int *has_match_conc, int *match_conc, int did_line_attr, int lcs_eol_one);
+int get_prevcol_hl_flag(win_T *wp, match_T *search_hl, long curcol);
+void get_search_match_hl(win_T *wp, match_T *search_hl, long col, int *char_attr);
 void f_clearmatches(typval_T *argvars, typval_T *rettv);
 void f_getmatches(typval_T *argvars, typval_T *rettv);
 void f_setmatches(typval_T *argvars, typval_T *rettv);