diff --git a/charts/longhorn/templates/storageclass.yaml b/charts/longhorn/templates/storageclass.yaml
index 6832517..f79699f 100644
--- a/charts/longhorn/templates/storageclass.yaml
+++ b/charts/longhorn/templates/storageclass.yaml
@@ -29,6 +29,9 @@
       {{- if .Values.persistence.migratable }}
       migratable: "{{ .Values.persistence.migratable }}"
       {{- end }}    
+      {{- if .Values.persistence.nfsOptions }}
+      nfsOptions: "{{ .Values.persistence.nfsOptions }}"
+      {{- end }}    
       {{- if .Values.persistence.backingImage.enable }}
       backingImage: {{ .Values.persistence.backingImage.name }}
       backingImageDataSourceType: {{ .Values.persistence.backingImage.dataSourceType }}
@@ -42,3 +45,6 @@
       {{- if .Values.persistence.defaultNodeSelector.enable }}
       nodeSelector: "{{ .Values.persistence.defaultNodeSelector.selector }}"
       {{- end }}
+      {{- if .Values.persistence.removeSnapshotsDuringFilesystemTrim }}
+      unmapMarkSnapChainRemoved: "{{ .Values.persistence.removeSnapshotsDuringFilesystemTrim }}"
+      {{- end }}