diff --git a/content/en/docs/18.0/reference/programs/vtbackup/_index.md b/content/en/docs/18.0/reference/programs/vtbackup/_index.md
index 43b73197c..862138076 100644
--- a/content/en/docs/18.0/reference/programs/vtbackup/_index.md
+++ b/content/en/docs/18.0/reference/programs/vtbackup/_index.md
@@ -190,6 +190,7 @@ vtbackup [flags]
       --mysql_server_version string                                 MySQL server version to advertise. (default "8.0.30-Vitess")
       --mysql_socket string                                         path to the mysql socket
       --mysql_timeout duration                                      how long to wait for mysqld startup (default 5m0s)
+      --opentsdb_uri string                                         URI of opentsdb /api/put method
       --port int                                                    port for the server
       --pprof strings                                               enable profiling
       --purge_logs_interval duration                                how often try to remove old logs (default 1h0m0s)