diff --git a/voltha-adapter-openonu/templates/_helpers.tpl b/voltha-adapter-openonu/templates/_helpers.tpl
index bf89b45..2cf8200 100644
--- a/voltha-adapter-openonu/templates/_helpers.tpl
+++ b/voltha-adapter-openonu/templates/_helpers.tpl
@@ -15,9 +15,15 @@
 {{- define "name" -}}
 {{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+
 {{/* Create a default fully qualified app name. We truncate at 63 chars because . . . */}}
 {{- define "fullname" -}}
 {{- $name := default .Chart.Name .Values.nameOverride -}}
 {{- $fullname := default (printf "%s-%s" .Release.Name $name) .Values.fullNameOverride -}}
 {{- $fullname | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+
+{{/* Comma separated list of allowed ONU Vendors */}}
+{{- define "allowed_onu_vendors" -}}
+{{- join "," .Values.allowed_onu_vendors}}
+{{- end -}}
diff --git a/voltha-adapter-openonu/templates/openonu-go-deploy.yaml b/voltha-adapter-openonu/templates/openonu-go-deploy.yaml
index 84bb42b..500db47 100644
--- a/voltha-adapter-openonu/templates/openonu-go-deploy.yaml
+++ b/voltha-adapter-openonu/templates/openonu-go-deploy.yaml
@@ -98,6 +98,7 @@
             - "--max_timeout_interadapter_comm={{ tpl .Values.adapter_open_onu.max_timeout_interadapter_comm . }}"
             - "--trace_enabled={{ .Values.global.tracing.enabled }}"
             - "--trace_agent_address={{ tpl .Values.services.tracing_agent.address . }}"
+            - "--allowed_onu_vendors={{ template "allowed_onu_vendors" . }}"
           {{- if .Values.securityContext.enabled }}
           securityContext:
             allowPrivilegeEscalation: false