diff --git a/deploy/helm/kafka-operator/templates/deployment.yaml b/deploy/helm/kafka-operator/templates/deployment.yaml
index 39ff6701..b1acdf25 100644
--- a/deploy/helm/kafka-operator/templates/deployment.yaml
+++ b/deploy/helm/kafka-operator/templates/deployment.yaml
@@ -47,8 +47,8 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: metadata.annotations['internal.stackable.tech/image']
-            - name: KUBERNETES_SERVICE_DNS_DOMAIN
-              value: {{ .Values.kubernetesServiceDnsDomain | default "cluster.local" | quote }}
+            - name: KUBERNETES_CLUSTER_DOMAIN
+              value: {{ .Values.kubernetesClusterDomain | default "cluster.local" | quote }}
             - name: KAFKA_BROKER_CLUSTERROLE
               value: {{ include "operator.fullname" . }}-kafka-broker-clusterrole
       volumes: