diff --git a/runtime.md b/runtime.md
index c46c91f..bbf9c13 100644
--- a/runtime.md
+++ b/runtime.md
@@ -48,8 +48,7 @@ Start a container from a bundle directory.
 * *Options*
   * *`--id <ID>`* Set the container ID when creating or joining a container.
     If not set, the runtime is free to pick any ID that is not already in use.
-  * *`--config <PATH>`* Override `config.json` with an alternative path.  The path may not support seeking (e.g. `/dev/fd/3`).
-  * *`--runtime <PATH>`* Override `runtime.json` with an alternative path.  The path may not support seeking (e.g. `/dev/fd/3`).
+  * *`--bundle <PATH>`* Override the current working directory as the bundle path.
 * *Standard streams:* The runtime must attach its standard streams directly to the application process without inspection.
 * *Environment variables*
   * *`LISTEN_FDS`:* The number of file descriptors passed.