diff --git a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
index 2fd56740622..7e593486172 100644
--- a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
+++ b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
@@ -100,7 +100,7 @@ Option to enable or disable [recurring etcd snaphots]({{< baseurl >}}/rke/latest
 
 >**Note:** In Rancher v2.0.5 and v2.0.6, the names of services in the Config File (YAML) should contain underscores only: `kube_api` and `kube_controller`.
 
-Instead of using the Rancher UI to choose Kubernetes options for the cluster, advanced users can create an RKE config file. Using a config file allows you to set any of the [options available]({{< baseurl >}}/rke/latest/en/config-options/) in an RKE installation.
+Instead of using the Rancher UI to choose Kubernetes options for the cluster, advanced users can create an RKE config file. Using a config file allows you to set any of the [options available]({{< baseurl >}}/rke/latest/en/config-options/) in an RKE installation, except for `system_images` configuration. The `system_images` option is not supported when creating a cluster with the Rancher UI or API.
 
 - To edit an RKE config file directly from the Rancher UI, click **Edit as YAML**.
 - To read from an existing RKE file, click **Read from a file**.