diff --git a/docs/features/kubernetes/configuration.md b/docs/features/kubernetes/configuration.md
index f48faa202d..6c9bf43da4 100644
--- a/docs/features/kubernetes/configuration.md
+++ b/docs/features/kubernetes/configuration.md
@@ -29,6 +29,7 @@ kubernetes:
           serviceAccountToken: ${K8S_MINIKUBE_TOKEN}
           dashboardUrl: http://127.0.0.1:64713 # url copied from running the command: minikube service kubernetes-dashboard -n kubernetes-dashboard
           dashboardApp: standard
+          caData: ${K8S_CONFIG_CA_DATA}
         - url: http://127.0.0.2:9999
           name: aws-cluster-1
           authProvider: 'aws'
@@ -135,6 +136,10 @@ See also
 https://github.com/backstage/backstage/tree/master/plugins/kubernetes/src/utils/clusterLinks/formatters
 for real examples.
 
+##### `clusters.\*.caData` (optional)
+
+PEM-encoded bytes (typically read from a client certificate file).
+
 #### `gke`
 
 This cluster locator is designed to work with Kubernetes clusters running in