diff --git a/doc/reference/config-options-launch.rst b/doc/reference/config-options-launch.rst
index 638933648..a288cdf6c 100644
--- a/doc/reference/config-options-launch.rst
+++ b/doc/reference/config-options-launch.rst
@@ -77,10 +77,11 @@ define post-launched User VM settings. This document describes these option sett
 
 ``network`` (a child node of ``virtio_devices``):
   The virtio network device setting.
-  Input format: ``<device_name>,[vhost],[mac=<XX:XX:XX:XX:XX:XX>]``.
-  The ``mac`` address is optional, ``device_name`` is the name of the TAP (or
-  MacVTap) device. It must include the keyword ``tap``. ``vhost`` specifies
-  vhost backend, otherwise the VBSU backend is used.
+  Input format: ``<device_name>[,vhost][,mac=<XX:XX:XX:XX:XX:XX>]``.
+  The ``<device_name>`` is the name of the TAP (or MacVTap) device.
+  It must include the keyword ``tap``. ``vhost`` specifies the
+  vhost backend; otherwise, the VBSU backend is used. The ``mac``
+  address is optional.
 
 ``block`` (a child node of ``virtio_devices``):
   The virtio block device setting.