diff --git a/src/proto/edit.pro b/src/proto/edit.pro
index f918528..170ac97 100644
--- a/src/proto/edit.pro
+++ b/src/proto/edit.pro
@@ -7,7 +7,7 @@
 void edit_unputchar(void);
 void display_dollar(colnr_T col_arg);
 void undisplay_dollar(void);
-void truncate_spaces(char_u *line);
+void truncate_spaces(char_u *line, size_t len);
 void backspace_until_column(int col);
 int get_literal(int noReduceKeys);
 void insertchar(int c, int flags, int second_indent);
@@ -24,7 +24,7 @@
 void cursor_down_inner(win_T *wp, long n);
 int cursor_down(long n, int upd_topline);
 int stuff_inserted(int c, long count, int no_esc);
-char_u *get_last_insert(void);
+string_T *get_last_insert(void);
 char_u *get_last_insert_save(void);
 void replace_push(int c);
 int replace_push_mb(char_u *p);