diff --git a/main/tools/sdk/ffx.md b/main/tools/sdk/ffx.md
index 149514e..9fc324f 100644
--- a/main/tools/sdk/ffx.md
+++ b/main/tools/sdk/ffx.md
@@ -9127,7 +9127,7 @@
 
 ```none {: style="white-space: break-spaces;" .devsite-disable-click-to-copy}
 
-Usage:  ffx repository serve [-r <repository>] [--address <address>] [--repo-path <repo-path>] [--product-bundle <product-bundle>] [--alias <alias...>] [--storage-type <storage-type>] [--alias-conflict-mode <alias-conflict-mode>] [--port-path <port-path>] [--no-device]
+Usage:  ffx repository serve [-r <repository>] [--trusted-root <trusted-root>] [--address <address>] [--repo-path <repo-path>] [--product-bundle <product-bundle>] [--alias <alias...>] [--storage-type <storage-type>] [--alias-conflict-mode <alias-conflict-mode>] [--port-path <port-path>] [--no-device]
 
 ```
 
@@ -9135,6 +9135,7 @@
 ----------- | ------
 | <nobr>--help</nobr> | display usage information
 | <nobr>-r, --repository</nobr> | register this repository. Default is `devhost`.
+| <nobr>--trusted-root</nobr> | path to the root metadata that was used to sign the repository TUF metadata. This establishes the root of trust for this repository. If the TUF metadata was not signed by this root metadata, running this command will result in an error. Default is to use 1.root.json from the repository.
 | <nobr>--address</nobr> | address on which to serve the repository. Note that this can be either IPV4 or IPV6. For example, [::]:8083 or 127.0.0.1:8083 Default is `[::]:8083`.
 | <nobr>--repo-path</nobr> | location of the package repo. Default is given by the build directory obtained from the ffx context.
 | <nobr>--product-bundle</nobr> | location of product bundle.