diff --git a/window-copy.c b/window-copy.c
index af80b8b4..72ac1306 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -898,9 +898,9 @@ window_copy_get_line(struct window_pane *wp, u_int y)
 {
 	struct window_mode_entry	*wme = TAILQ_FIRST(&wp->modes);
 	struct window_copy_mode_data	*data = wme->data;
-	struct grid			*gd = data->screen.grid;
+	struct grid			*gd = data->backing->grid;
 
-	return (format_grid_line(gd, gd->hsize + y));
+	return (format_grid_line(gd, gd->hsize + y - data->oy));
 }
 
 char *