1 files changed, 3 insertions, 0 deletions

diff --git a/src/dispextern.h b/src/dispextern.h
index d38f3d34275..615d1a02670 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -1964,6 +1964,9 @@ struct it
      glyph_row in move_it_to and display_line.  */
   int current_y;
 
+  /* Vertical matrix position of first text line in window.  */
+  int first_vpos;
+
   /* Current vertical matrix position, or line number.  Automatically
      incremented by move_it_to and display_line.  */
   int vpos;