diff --git a/src/proto/move.pro b/src/proto/move.pro
index 3dd6ec1..f9787d6 100644
--- a/src/proto/move.pro
+++ b/src/proto/move.pro
@@ -11,6 +11,7 @@
 void changed_cline_bef_curs_win(win_T *wp);
 void changed_line_abv_curs(void);
 void changed_line_abv_curs_win(win_T *wp);
+void changed_line_display_buf(buf_T *buf);
 void validate_botline(void);
 void validate_botline_win(win_T *wp);
 void invalidate_botline(void);