diff --git a/products/kubernetes-operator/install/olm.mdx b/products/kubernetes-operator/install/olm.mdx
index 25051f35..8ff3cb14 100644
--- a/products/kubernetes-operator/install/olm.mdx
+++ b/products/kubernetes-operator/install/olm.mdx
@@ -97,3 +97,4 @@ More info about uninstalling can be found in the [OLM documentation](https://olm
 ## Additional Resources {#additional-resources}
 
 - [Operator Lifecycle Manager Documentation](https://olm.operatorframework.io/docs)
+
diff --git a/products/kubernetes-operator/reference/api-reference.mdx b/products/kubernetes-operator/reference/api-reference.mdx
index 43e59de8..2872ead1 100644
--- a/products/kubernetes-operator/reference/api-reference.mdx
+++ b/products/kubernetes-operator/reference/api-reference.mdx
@@ -8,9 +8,20 @@ doc_type: 'reference'
 sidebarTitle: 'API reference'
 ---
 
-
 This document provides detailed API reference for the ClickHouse Operator custom resources.
 
+## AdditionalPort {#additionalport}
+
+AdditionalPort declares one extra TCP port to expose on the ClickHouse Pod and the operator-managed headless Service.
+
+| Field | Type | Description | Required | Default |
+|-------|------|-------------|----------|---------|
+| `name` | string | Name uniquely identifies the port within the list. Used as both the container port name and the Service port name.<br />This must be a DNS_LABEL. | true |  |
+| `port` | integer | Port is the TCP port number to expose. | true |  |
+
+Appears in:
+- [ClickHouseClusterSpec](#clickhouseclusterspec)
+
 ## ClickHouseCluster {#clickhousecluster}
 
 ClickHouseCluster is the Schema for the `clickhouseclusters` API.
@@ -65,6 +76,7 @@ ClickHouseClusterSpec defines the desired state of ClickHouseCluster.
 | `upgradeChannel` | string | UpgradeChannel specifies the release channel for major version upgrade checks.<br />When empty, only minor updates will be proposed. Allowed values are: stable, lts or specific major.minor version (e.g. 25.8). | false |  |
 | `versionProbeTemplate` | [VersionProbeTemplate](#versionprobetemplate) | VersionProbeTemplate overrides for the version detection Job. | false |  |
 | `externalSecret` | [ExternalSecret](#externalsecret) | ExternalSecret is an optional reference to an externally-managed Secret containing cluster secrets.<br />The secret must reside in the same namespace as the cluster. | false |  |
+| `additionalPorts` | [AdditionalPort](#additionalport) array | AdditionalPorts declares extra TCP ports to expose on the ClickHouse Pod and the operator-managed headless Service.<br />The operator only adds the ports to the Kubernetes resources, it does not configure the ClickHouse server to listen on them. | false |  |
 
 Appears in:
 - [ClickHouseCluster](#clickhousecluster)