diff --git a/myftpdumper.sh b/myftpdumper.sh
index 51f95195146078605b08b7ee1ef2144401831c40..a3d28b34371f6b9d030bc268544696d780014abe 100755
--- a/myftpdumper.sh
+++ b/myftpdumper.sh
@@ -260,7 +260,7 @@ upload() {
 
         # FTP: delete old backups
         info "Delete old backups on FTP..."
-        ftpfiles=$(exec_ftp "cd \"$FTP_DIR\"; nlist; exit")
+        ftpfiles=$(exec_ftp "cd \"$FTP_DIR\"; nlist; exit" | sort)
         ## filter files starting with a dot
         ftpfiles=( $(echo $ftpfiles | sed 's,\.[A-Za-z0-9_\/\.]* , ,g') )
         ## find old backups