diff --git a/docs/features/techdocs/cli.md b/docs/features/techdocs/cli.md
index 87eb67d04a..9704b9b21b 100644
--- a/docs/features/techdocs/cli.md
+++ b/docs/features/techdocs/cli.md
@@ -95,6 +95,7 @@ Options:
   --preview-app-bundle-path <PATH_TO_BUNDLE>  Preview documentation using a web app other than the included one.
   --preview-app-port <PORT>                   Port where the preview will be served.
                                               Can only be used with "--preview-app-bundle-path". (default: "3000")
+  -c, --mkdocs-config-file-name <FILENAME>    Yaml file to use as config by mkdocs.
   -v --verbose                                Enable verbose output. (default: false)
   -h, --help                                  display help for command
 ```