--- charts-original/templates/controller-ingressclass.yaml
+++ charts/templates/controller-ingressclass.yaml
@@ -9,7 +9,7 @@
     {{- toYaml . | nindent 4 }}
     {{- end }}
   name: {{ .Values.controller.ingressClassResource.name }}
-  {{- if .Values.controller.ingressClassResource.default }}
+  {{- if or (.Values.controller.ingressClassResource.default) (eq .Values.global.systemDefaultIngressClass "ingress-nginx") }}
   annotations:
     ingressclass.kubernetes.io/is-default-class: "true"
   {{- end }}