diff --git a/mmv1/third_party/terraform/website/docs/r/dataproc_cluster.html.markdown b/mmv1/third_party/terraform/website/docs/r/dataproc_cluster.html.markdown
index a4465a58650c..aa46fb713ab4 100644
--- a/mmv1/third_party/terraform/website/docs/r/dataproc_cluster.html.markdown
+++ b/mmv1/third_party/terraform/website/docs/r/dataproc_cluster.html.markdown
@@ -187,8 +187,11 @@ The `cluster_config` block supports:
 * `worker_config` (Optional) The Google Compute Engine config settings for the worker instances
    in a cluster.. Structure defined below.
 
-* `preemptible_worker_config` (Optional) The Google Compute Engine config settings for the additional (aka
-   preemptible) instances in a cluster. Structure defined below.
+* `preemptible_worker_config` (Optional) The Google Compute Engine config settings for the additional
+   instances in a cluster. Structure defined below.
+  * **NOTE** : `preemptible_worker_config` is
+   an alias for the api's [secondaryWorkerConfig](https://cloud.google.com/dataproc/docs/reference/rest/v1/ClusterConfig#InstanceGroupConfig). The name doesn't neccasarily mean it is preemptible and is named as
+   such for legacy/compatibility reasons.
 
 * `software_config` (Optional) The config settings for software inside the cluster.
    Structure defined below.