diff --git a/src/proto/window.pro b/src/proto/window.pro
index ca0de7a..1c56ab1 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -14,11 +14,13 @@
 void curwin_init __ARGS((void));
 int win_alloc_first __ARGS((void));
 void win_init_size __ARGS((void));
-int win_new_tabpage __ARGS((void));
+int win_new_tabpage __ARGS((int after));
+int may_open_tabpage __ARGS((void));
 int make_tabpages __ARGS((int maxcount));
 int valid_tabpage __ARGS((tabpage_T *tpc));
 tabpage_T *find_tabpage __ARGS((int n));
 void goto_tabpage __ARGS((int n));
+void tabpage_move __ARGS((int nr));
 void win_goto __ARGS((win_T *wp));
 win_T *win_find_nr __ARGS((int winnr));
 void win_enter __ARGS((win_T *wp, int undo_sync));