diff --git a/nats-server/flags.md b/nats-server/flags.md
index 2a12ad0..2e54987 100644
--- a/nats-server/flags.md
+++ b/nats-server/flags.md
@@ -50,6 +50,7 @@ The following flags are available on the server to configure logging:
 | `-D`, `--debug` | Enable debugging output |
 | `-V`, `--trace` | Enable protocol trace log messages |
 | `-DV` | Enable both debug and protocol trace messages |
+| `-DVV` | Debug and verbose trace (traces system account as well)|
 | `--max_traced_msg_len` | Maximum printable length for traced messages. 0 for unlimited |
 
 You can read more about [logging configuration here](configuration/logging.md).