diff --git a/charts/kubernetes-operator/templates/deployment.yaml b/charts/kubernetes-operator/templates/deployment.yaml
index 117b3eb..ffaf4cd 100644
--- a/charts/kubernetes-operator/templates/deployment.yaml
+++ b/charts/kubernetes-operator/templates/deployment.yaml
@@ -75,7 +75,7 @@ spec:
           {{- end }}
           ports:
             - name: webhook-server
-              containerPort: {{ .Values.webhook.service.port }}
+              containerPort: {{ .Values.webhook.service.targetPort }}
               protocol: TCP
           livenessProbe:
             failureThreshold: 3