diff --git a/voltha-adapter-openolt/templates/adapters-openolt.yaml b/voltha-adapter-openolt/templates/adapters-openolt.yaml
index ae4ae38..a1b4f69 100644
--- a/voltha-adapter-openolt/templates/adapters-openolt.yaml
+++ b/voltha-adapter-openolt/templates/adapters-openolt.yaml
@@ -60,7 +60,7 @@
     spec:
       containers:
         - name: adapter-open-olt
-          image: {{ tpl .Values.images.adapter_open_olt.registry . }}{{ tpl .Values.images.adapter_open_olt.repository . }}:{{ tpl ( tpl .Values.images.adapter_open_olt.tag . ) . }}
+          image: '{{ tpl .Values.images.adapter_open_olt.registry . }}{{ tpl .Values.images.adapter_open_olt.repository . }}:{{ tpl ( tpl .Values.images.adapter_open_olt.tag . ) . }}'
           imagePullPolicy: {{ tpl .Values.images.adapter_open_olt.pullPolicy . }}
           args:
             - "/app/openolt"