diff --git a/helm-chart/templates/adapter-pvc.yaml b/helm-chart/templates/adapter-pvc.yaml
index a424cdaf..61778630 100644
--- a/helm-chart/templates/adapter-pvc.yaml
+++ b/helm-chart/templates/adapter-pvc.yaml
@@ -4,7 +4,10 @@ metadata:
   name: {{ .Release.Name }}-maibot-adapter
   namespace: {{ .Release.Namespace }}
 spec:
-  accessModes: {{ .Values.adapter.persistence.accessModes }}
+  {{- if .Values.adapter.persistence.accessModes }}
+  accessModes:
+    {{ toYaml .Values.adapter.persistence.accessModes | nindent 4 }}
+  {{- end }}
   resources:
     requests:
       storage: {{ .Values.adapter.persistence.size }}
diff --git a/helm-chart/templates/core-pvc.yaml b/helm-chart/templates/core-pvc.yaml
index 38667d38..cf2a1146 100644
--- a/helm-chart/templates/core-pvc.yaml
+++ b/helm-chart/templates/core-pvc.yaml
@@ -4,7 +4,10 @@ metadata:
   name: {{ .Release.Name }}-maibot-core
   namespace: {{ .Release.Namespace }}
 spec:
-  accessModes: {{ .Values.core.persistence.accessModes }}
+  {{- if .Values.core.persistence.accessModes }}
+  accessModes:
+    {{ toYaml .Values.core.persistence.accessModes | nindent 4 }}
+  {{- end }}
   resources:
     requests:
       storage: {{ .Values.core.persistence.size }}
diff --git a/helm-chart/templates/napcat-pvc.yaml b/helm-chart/templates/napcat-pvc.yaml
index f2fdec4e..7a5bd9b9 100644
--- a/helm-chart/templates/napcat-pvc.yaml
+++ b/helm-chart/templates/napcat-pvc.yaml
@@ -5,7 +5,10 @@ metadata:
   name: {{ .Release.Name }}-maibot-napcat
   namespace: {{ .Release.Namespace }}
 spec:
-  accessModes: {{ .Values.napcat.persistence.accessModes }}
+  {{- if .Values.napcat.persistence.accessModes }}
+  accessModes:
+    {{ toYaml .Values.napcat.persistence.accessModes | nindent 4 }}
+  {{- end }}
   resources:
     requests:
       storage: {{ .Values.napcat.persistence.size }}
diff --git a/helm-chart/templates/statistics-pvc.yaml b/helm-chart/templates/statistics-pvc.yaml
index f1a25a5f..9e5a86fd 100644
--- a/helm-chart/templates/statistics-pvc.yaml
+++ b/helm-chart/templates/statistics-pvc.yaml
@@ -5,7 +5,10 @@ metadata:
   name: {{ .Release.Name }}-maibot-statistics-dashboard
   namespace: {{ .Release.Namespace }}
 spec:
-  accessModes: {{ .Values.statistics_dashboard.persistence.accessModes }}
+  {{- if .Values.statistics_dashboard.persistence.accessModes }}
+  accessModes:
+    {{ toYaml .Values.statistics_dashboard.persistence.accessModes | nindent 4 }}
+  {{- end }}
   resources:
     requests:
       storage: {{ .Values.statistics_dashboard.persistence.size }}