diff --git a/templates/_helpers.tpl b/templates/_helpers.tpl
index 559bd61..4c74291 100644
--- a/templates/_helpers.tpl
+++ b/templates/_helpers.tpl
@@ -74,7 +74,7 @@ imagePullSecrets:
 Storage Class
 */}}
 {{- define "gitea.persistence.storageClass" -}}
-{{- $storageClass := (tpl .Values.global.storageClass $ ) | default (tpl .Values.persistence.storageClass $ ) }}
+{{- $storageClass :=  (tpl ( default "" .Values.persistence.storageClass) .) | default (tpl ( default "" .Values.global.storageClass) .) }}
 {{- if $storageClass }}
 storageClassName: {{ $storageClass | quote }}
 {{- end }}