diff --git a/k8s/charts/seaweedfs/templates/filer-statefulset.yaml b/k8s/charts/seaweedfs/templates/filer-statefulset.yaml
index 5ac84bdf7..304d746d8 100644
--- a/k8s/charts/seaweedfs/templates/filer-statefulset.yaml
+++ b/k8s/charts/seaweedfs/templates/filer-statefulset.yaml
@@ -209,7 +209,7 @@ spec:
               -s3.cert.file=/usr/local/share/ca-certificates/client/tls.crt \
               -s3.key.file=/usr/local/share/ca-certificates/client/tls.key \
               {{- end }}
-              {{- if .Values.filer.s3.allowEmptyFolder }}
+              {{- if eq (typeOf .Values.filer.s3.allowEmptyFolder) "bool" }}
               -s3.allowEmptyFolder={{ .Values.filer.s3.allowEmptyFolder }} \
               {{- end }}
               {{- if .Values.filer.s3.enableAuth }}
diff --git a/k8s/charts/seaweedfs/templates/s3-deployment.yaml b/k8s/charts/seaweedfs/templates/s3-deployment.yaml
index 1c989c3fb..3b29e2b42 100644
--- a/k8s/charts/seaweedfs/templates/s3-deployment.yaml
+++ b/k8s/charts/seaweedfs/templates/s3-deployment.yaml
@@ -134,7 +134,7 @@ spec:
               {{- if .Values.s3.domainName }}
               -domainName={{ .Values.s3.domainName }} \
               {{- end }}
-              {{- if .Values.s3.allowEmptyFolder }}
+              {{- if eq (typeOf .Values.s3.allowEmptyFolder) "bool" }}
               -allowEmptyFolder={{ .Values.s3.allowEmptyFolder }} \
               {{- end }}
               {{- if .Values.s3.enableAuth }}