diff --git a/src/proto/buffer.pro b/src/proto/buffer.pro
index 835d2ce..1061e36 100644
--- a/src/proto/buffer.pro
+++ b/src/proto/buffer.pro
@@ -39,6 +39,7 @@
 void col_print __ARGS((char_u *buf, int col, int vcol));
 void maketitle __ARGS((void));
 void resettitle __ARGS((void));
+void free_titles __ARGS((void));
 int build_stl_str_hl __ARGS((win_T *wp, char_u *out, size_t outlen, char_u *fmt, int fillchar, int maxwidth, struct stl_hlrec *hl));
 void get_rel_pos __ARGS((win_T *wp, char_u *str));
 int append_arg_number __ARGS((win_T *wp, char_u *buf, int add_file, int maxlen));
diff --git a/src/proto/gui_gtk_x11.pro b/src/proto/gui_gtk_x11.pro
index 8133022..a22bacf 100644
--- a/src/proto/gui_gtk_x11.pro
+++ b/src/proto/gui_gtk_x11.pro
@@ -1,5 +1,6 @@
 /* gui_gtk_x11.c */
 void gui_mch_prepare __ARGS((int *argc, char **argv));
+void gui_mch_free_all __ARGS((void));
 void gui_mch_set_blinking __ARGS((long waittime, long on, long off));
 void gui_mch_stop_blink __ARGS((void));
 void gui_mch_start_blink __ARGS((void));