diff --git a/deploy/charts/rawfile-csi/Chart.yaml b/deploy/charts/rawfile-csi/Chart.yaml
index 3896e28..b2448ab 100644
--- a/deploy/charts/rawfile-csi/Chart.yaml
+++ b/deploy/charts/rawfile-csi/Chart.yaml
@@ -2,5 +2,5 @@ apiVersion: v2
 name: rawfile-csi
 description: RawFile Driver Container Storage Interface
 type: application
-version: 0.8.0
+version: 0.8.1
 appVersion: 0.8.0
diff --git a/deploy/charts/rawfile-csi/templates/02-storageclass.yaml b/deploy/charts/rawfile-csi/templates/02-storageclass.yaml
index 77b4790..8a50f36 100644
--- a/deploy/charts/rawfile-csi/templates/02-storageclass.yaml
+++ b/deploy/charts/rawfile-csi/templates/02-storageclass.yaml
@@ -4,9 +4,9 @@ kind: StorageClass
 metadata:
   name: {{ .Values.storageClass.name }}
   annotations:
-    storageclass.kubernetes.io/is-default-class: {{ .Values.storageClass.isDefault }}
+    storageclass.kubernetes.io/is-default-class: "{{ .Values.storageClass.isDefault }}"
 provisioner: rawfile.csi.openebs.io
 reclaimPolicy: {{ .Values.storageClass.reclaimPolicy }}
 volumeBindingMode: {{ .Values.storageClass.volumeBindingMode }}
 allowVolumeExpansion: true
-{{- end }}
\ No newline at end of file
+{{- end }}