diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11247d637..dd91c6aa8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@
 
 ### Fixed Bugs
 
+- [PR #156](https://github.com/Orange-OpenSource/nifikop/pull/156) - **[Helm chart]** Operator metrics port configuration
+
 ## v0.7.2
 
 ### Added
diff --git a/helm/nifikop/README.md b/helm/nifikop/README.md
index d87d90a3b..0beb3dcce 100644
--- a/helm/nifikop/README.md
+++ b/helm/nifikop/README.md
@@ -30,7 +30,8 @@ The following tables lists the configurable parameters of the NiFi Operator Helm
 | `certManager.enabled`            | Enable cert-manager integration                                                                                                                                                      | `true`                     |
 | `rbacEnable`                     | If true, create & use RBAC resources                                                                                                                                                 | `true`                     |
 | `resources`                      | Pod resource requests & limits                                                                                                                                                       | `{}`                       |
-| `metricService`                  | deploy service for metrics                                                                                                                                                           | `false`                    |
+| `metrics.enabled`                | deploy service for metrics                                                                                                                                                           | `false`                    |
+| `metrics.port`                | Set port for operator metrics                                                                                                                                                  | `8081`                    |
 | `debug.enabled`                  | activate DEBUG log level                                                                                                                                                             | `false`                    |
 | `certManager.clusterScoped`      | If true setup cluster scoped resources                                                                                                                                               | `false`                    |
 | `namespaces`                     | List of namespaces where Operator watches for custom resources. Make sure the operator ServiceAccount is granted `get` permissions on this `Node` resource when using limited RBACs. | `""` i.e. all namespaces   |
diff --git a/helm/nifikop/templates/deployment.yaml b/helm/nifikop/templates/deployment.yaml
index badfe9280..bddaae3a1 100644
--- a/helm/nifikop/templates/deployment.yaml
+++ b/helm/nifikop/templates/deployment.yaml
@@ -66,6 +66,7 @@ spec:
         - command:
             - /manager
           args:
+            - metrics-bind-address={{.Values.metrics.port}}
             - --leader-elect
             {{- if .Values.certManager.enabled }}
             - --cert-manager-enabled={{ .Values.certManager.enabled }}
diff --git a/helm/nifikop/templates/service.yaml b/helm/nifikop/templates/service.yaml
index e3e9bd667..60c908bf4 100644
--- a/helm/nifikop/templates/service.yaml
+++ b/helm/nifikop/templates/service.yaml
@@ -1,4 +1,4 @@
-{{- if .Values.metricService }}
+{{- if .Values.metrics.enabled }}
 apiVersion: v1
 kind: Service
 metadata:
@@ -14,6 +14,6 @@ spec:
     app: {{ template "nifikop.name" . }}
   ports:
   - name: metrics
-    port: 9710
+    port: {{ .Values.metrics.port }}
     protocol: TCP
 {{- end }}
\ No newline at end of file
diff --git a/helm/nifikop/values.yaml b/helm/nifikop/values.yaml
index 08bf545c7..f60b3d0aa 100644
--- a/helm/nifikop/values.yaml
+++ b/helm/nifikop/values.yaml
@@ -36,8 +36,10 @@ rbacEnable: true
 serviceAccount:
   create: true
 
-## if true deploy service for metrics access
-metricService: false
+metrics:
+  ## if true deploy service for metrics access
+  enabled: false
+  port: 8081
 
 debug:
   enabled: false
diff --git a/site/docs/2_setup/3_install/1_customizable_install_with_helm.md b/site/docs/2_setup/3_install/1_customizable_install_with_helm.md
index 002f05a55..6e5a97b78 100644
--- a/site/docs/2_setup/3_install/1_customizable_install_with_helm.md
+++ b/site/docs/2_setup/3_install/1_customizable_install_with_helm.md
@@ -40,7 +40,8 @@ The following tables lists the configurable parameters of the NiFi Operator Helm
 | `certManager.enabled`            | Enable cert-manager integration                                                                                                                                                      | `true`                     |
 | `rbacEnable`                     | If true, create & use RBAC resources                                                                                                                                                 | `true`                     |
 | `resources`                      | Pod resource requests & limits                                                                                                                                                       | `{}`                       |
-| `metricService`                  | deploy service for metrics                                                                                                                                                           | `false`                    |
+| `metrics.enabled`                | deploy service for metrics                                                                                                                                                           | `false`                    |
+| `metrics.port`                | Set port for operator metrics                                                                                                                                                  | `8081`                    |
 | `debug.enabled`                  | activate DEBUG log level                                                                                                                                                             | `false`                    |
 | `certManager.clusterScoped`      | If true setup cluster scoped resources                                                                                                                                               | `false`                    |
 | `namespaces`                     | List of namespaces where Operator watches for custom resources. Make sure the operator ServiceAccount is granted `get` permissions on this `Node` resource when using limited RBACs. | `""` i.e. all namespaces   |