diff --git a/backup.sh b/backup.sh
index 020609c..86bd407 100644
--- a/backup.sh
+++ b/backup.sh
@@ -8,4 +8,4 @@ read disk
 
 mkdir -p out
 
-tar -cvzpf - $data | openssl enc -e --aes256 --out - | split -d -b $disk - out/backup.tar.gz.enc.
+tar -cvJpf - $data | openssl enc -e --aes256 --out - | split -d -b $disk - out/backup.tar.xz.enc.