diff --git a/emhttp/plugins/dynamix/scripts/flash_backup b/emhttp/plugins/dynamix/scripts/flash_backup
index ba845a87b..1f09d7bbb 100755
--- a/emhttp/plugins/dynamix/scripts/flash_backup
+++ b/emhttp/plugins/dynamix/scripts/flash_backup
@@ -19,7 +19,8 @@ $out = ['prev','previous'];
 
 $server = isset($var['NAME']) ? str_replace(' ','_',strtolower($var['NAME'])) : 'tower';
 $mydate = date('Ymd-Hi');
-$backup = "$server-flash-backup-$mydate.zip";
+$osVersion = @$var['version'] ?? '_unknown';
+$backup = "$server-v$osVersion-flash-backup-$mydate.zip";
 
 $used = exec("df /boot|awk 'END{print $3}'") * 1.5;
 $free = exec("df /|awk 'END{print $4}'");