diff --git a/clusters/cluster_lifecycle/create_cluster_on_prem.adoc b/clusters/cluster_lifecycle/create_cluster_on_prem.adoc
index 2f497cc184..d2e592dc7a 100644
--- a/clusters/cluster_lifecycle/create_cluster_on_prem.adoc
+++ b/clusters/cluster_lifecycle/create_cluster_on_prem.adoc
@@ -151,6 +151,8 @@ spec:
   releaseImage: quay.io/openshift-release-dev/ocp-release:4.15.0-rc.0-x86_64
 ----
 
+*Note:* You need to create a multi-architecture `ClusterImageSet` if you install a managed cluster that has a different architecture than the hub cluster. To learn more, see xref:../cluster_lifecycle/release_images_specify#manual-release-image-cross-arch[Creating a release image to deploy a cluster on a different architecture].
+
 [#on-prem-creating-your-cluster-with-the-cli-clusterdeployment]
 === Create the ClusterDeployment custom resource