diff --git a/flytectl/docs/source/gen/flytectl_sandbox_start.rst b/flytectl/docs/source/gen/flytectl_sandbox_start.rst
index 217b7da4b59..402342248a3 100644
--- a/flytectl/docs/source/gen/flytectl_sandbox_start.rst
+++ b/flytectl/docs/source/gen/flytectl_sandbox_start.rst
@@ -54,6 +54,7 @@ Options
   -h, --help                              help for start
       --image string                      Optional. Provide a fully qualified path to a Flyte compliant docker image.
       --imagePullPolicy ImagePullPolicy   Optional. Defines the image pull behavior [Always/IfNotPresent/Never] (default Always)
+      --pre                               Optional. Pre release Version of flyte will be used for sandbox.
       --source string                     Path of your source code
       --version string                    Version of flyte. Only supports flyte releases greater than v0.10.0