diff --git a/src/proto/move.pro b/src/proto/move.pro
index 07a70d2..00b4d29 100644
--- a/src/proto/move.pro
+++ b/src/proto/move.pro
@@ -7,6 +7,7 @@
 void check_cursor_moved(win_T *wp);
 void changed_window_setting(void);
 void changed_window_setting_win(win_T *wp);
+void changed_window_setting_buf(buf_T *buf);
 void set_topline(win_T *wp, linenr_T lnum);
 void changed_cline_bef_curs(void);
 void changed_cline_bef_curs_win(win_T *wp);