diff --git a/src/proto/buffer.pro b/src/proto/buffer.pro
index e2adf5c..183f79a 100644
--- a/src/proto/buffer.pro
+++ b/src/proto/buffer.pro
@@ -7,7 +7,7 @@
 void buf_clear_file(buf_T *buf);
 void buf_freeall(buf_T *buf, int flags);
 void goto_buffer(exarg_T *eap, int start, int dir, int count);
-void handle_swap_exists(buf_T *old_curbuf);
+void handle_swap_exists(bufref_T *old_curbuf);
 char_u *do_bufdel(int command, char_u *arg, int addr_count, int start_bnr, int end_bnr, int forceit);
 int do_buffer(int action, int start, int dir, int count, int forceit);
 void set_curbuf(buf_T *buf, int action);
diff --git a/src/proto/window.pro b/src/proto/window.pro
index 05b6b9d..e091e34 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -74,8 +74,8 @@
 void restore_snapshot(int idx, int close_curwin);
 int switch_win(win_T **save_curwin, tabpage_T **save_curtab, win_T *win, tabpage_T *tp, int no_display);
 void restore_win(win_T *save_curwin, tabpage_T *save_curtab, int no_display);
-void switch_buffer(buf_T **save_curbuf, buf_T *buf);
-void restore_buffer(buf_T *save_curbuf);
+void switch_buffer(bufref_T *save_curbuf, buf_T *buf);
+void restore_buffer(bufref_T *save_curbuf);
 int win_hasvertsplit(void);
 int match_add(win_T *wp, char_u *grp, char_u *pat, int prio, int id, list_T *pos_list, char_u *conceal_char);
 int match_delete(win_T *wp, int id, int perr);