diff --git a/tools/nextwks-tool/main.go b/tools/nextwks-tool/main.go
index fb7d723..67cde91 100644
--- a/tools/nextwks-tool/main.go
+++ b/tools/nextwks-tool/main.go
@@ -97,7 +97,7 @@ func runCert(args []string) {
 	domainsStr := fs.String("domains", "", "Comma-separated domain list")
 	email := fs.String("email", "", "ACME email")
 	backupDir := fs.String("backup-dir", "/opt/backup/certificates", "Backup directory for certs")
-	legoDir := fs.String("lego-dir", "/opt/backup/certificates", "Lego working directory")
+	legoDir := fs.String("lego-dir", "/opt/backup", "Lego working directory")
 	fs.Parse(args)
 
 	if *domainsStr == "" || *email == "" {