--- charts-original/templates/default-backend-deployment.yaml
+++ charts/templates/default-backend-deployment.yaml
@@ -45,9 +45,7 @@
     {{- end }}
       containers:
         - name: {{ template "ingress-nginx.name" . }}-default-backend
-          {{- with .Values.defaultBackend.image }}
-          image: "{{- if .repository -}}{{ .repository }}{{ else }}{{ .registry }}/{{ .image }}{{- end -}}:{{ .tag }}{{- if (.digest) -}} @{{.digest}} {{- end -}}"
-          {{- end }}
+          image: "{{ template "system_default_registry" . }}{{ template "repository_or_registry_and_image" .Values.defaultBackend.image }}"
           imagePullPolicy: {{ .Values.defaultBackend.image.pullPolicy }}
         {{- if .Values.defaultBackend.extraArgs }}
           args: