diff --git a/src/proto/undo.pro b/src/proto/undo.pro
index daac377..40d166a 100644
--- a/src/proto/undo.pro
+++ b/src/proto/undo.pro
@@ -12,11 +12,12 @@
 void u_read_undo __ARGS((char_u *name, char_u *hash, char_u *orig_name));
 void u_undo __ARGS((int count));
 void u_redo __ARGS((int count));
-void undo_time __ARGS((long step, int sec, int absolute));
+void undo_time __ARGS((long step, int sec, int file, int absolute));
 void u_sync __ARGS((int force));
 void ex_undolist __ARGS((exarg_T *eap));
 void ex_undojoin __ARGS((exarg_T *eap));
 void u_unchanged __ARGS((buf_T *buf));
+void u_update_save_nr __ARGS((buf_T *buf));
 void u_clearall __ARGS((buf_T *buf));
 void u_saveline __ARGS((linenr_T lnum));
 void u_clearline __ARGS((void));