diff --git a/docs/examples/customization/ssl-dh-param/README.md b/docs/examples/customization/ssl-dh-param/README.md
index e5167f1d2..2a9b0f707 100644
--- a/docs/examples/customization/ssl-dh-param/README.md
+++ b/docs/examples/customization/ssl-dh-param/README.md
@@ -36,7 +36,7 @@ $ cat ssl-dh-param.yaml
 apiVersion: v1
 data:
   dhparam.pem: "LS0tLS1CRUdJTiBESCBQQVJBTUVURVJ..."
-kind: ConfigMap
+kind: Secret
 metadata:
   name: nginx-configuration
   namespace: ingress-nginx