add undo in erase mode

1 files changed, 1 insertions, 1 deletions

diff --git a/screen.c b/screen.c
index d0310eb..e347ea3 100644
--- a/screen.c
+++ b/screen.c
@@ -445,7 +445,7 @@ void crop_to_rect(int x1, int y1, int x2, int y2){
 	int i;
 
 	for (i=0; i<= y2-y1; i ++){
-		ensure_line_length(&(screen.l[i]), screen.l[i+y1].lst);
+		ensure_line_length(&(screen.l[i]), screen.l[i+y1].lst+1);
 		sprintf(screen.l[i].s, "%s", screen.l[i+y1].s + x1);
 		screen.l[i].lst = screen.l[i+y1].lst - x1;
 	}