diff --git a/changes/v5.0.10-en.md b/changes/v5.0.10-en.md
index fe3aa46e6..0f9583946 100644
--- a/changes/v5.0.10-en.md
+++ b/changes/v5.0.10-en.md
@@ -32,3 +32,5 @@
   the encoding (to JSON) of the event will fail.
 
 - Fix bad HTTP response status code for `/gateways` API, when Gateway name is unknown, it should return `404` instead of `400` [#9268](https://github.com/emqx/emqx/pull/9268).
+
+- Fix `ssl.existingName` option of  helm chart not working [#9307](https://github.com/emqx/emqx/issues/9307).
diff --git a/changes/v5.0.10-zh.md b/changes/v5.0.10-zh.md
index 01c49b49e..564943d73 100644
--- a/changes/v5.0.10-zh.md
+++ b/changes/v5.0.10-zh.md
@@ -30,3 +30,5 @@
   `$events/message_dropped`, 如果消息事件是共享订阅产生的，在编码（到 JSON 格式）过程中会失败。
 
 - 修复 HTTP API `/gateways` 的返回状态码，未知 Gateway 名字应返回 `404` 而不是 `400` [#9268](https://github.com/emqx/emqx/pull/9268)。
+
+- 修复 helm chart 的 `ssl.existingName` 选项不起作用 [#9307](https://github.com/emqx/emqx/issues/9307)。
diff --git a/deploy/charts/emqx-enterprise/templates/StatefulSet.yaml b/deploy/charts/emqx-enterprise/templates/StatefulSet.yaml
index 4b970e183..5f259dc35 100644
--- a/deploy/charts/emqx-enterprise/templates/StatefulSet.yaml
+++ b/deploy/charts/emqx-enterprise/templates/StatefulSet.yaml
@@ -56,7 +56,7 @@ spec:
       {{- if .Values.ssl.enabled }}
       - name: ssl-cert
         secret:
-          secretName: {{ include "emqx.fullname" . }}-tls
+          secretName: {{ include "emqx.ssl.secretName" . }}
       {{- end }}
       {{- if not .Values.persistence.enabled }}
       - name: emqx-data
diff --git a/deploy/charts/emqx-enterprise/templates/_helpers.tpl b/deploy/charts/emqx-enterprise/templates/_helpers.tpl
index ad01d5862..e55740b01 100644
--- a/deploy/charts/emqx-enterprise/templates/_helpers.tpl
+++ b/deploy/charts/emqx-enterprise/templates/_helpers.tpl
@@ -30,3 +30,15 @@ Create chart name and version as used by the chart label.
 {{- define "emqx.chart" -}}
 {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+
+
+{{/*
+Get ssl secret name .
+*/}}
+{{- define "emqx.ssl.secretName" -}}
+{{- if and .Values.ssl.useExisting .Values.ssl.existingName -}}
+    {{ .Values.ssl.existingName }}
+{{- else -}}
+    {{ include "emqx.fullname" . }}-tls
+{{- end -}}
+{{- end -}}
diff --git a/deploy/charts/emqx/templates/StatefulSet.yaml b/deploy/charts/emqx/templates/StatefulSet.yaml
index 4b970e183..5f259dc35 100644
--- a/deploy/charts/emqx/templates/StatefulSet.yaml
+++ b/deploy/charts/emqx/templates/StatefulSet.yaml
@@ -56,7 +56,7 @@ spec:
       {{- if .Values.ssl.enabled }}
       - name: ssl-cert
         secret:
-          secretName: {{ include "emqx.fullname" . }}-tls
+          secretName: {{ include "emqx.ssl.secretName" . }}
       {{- end }}
       {{- if not .Values.persistence.enabled }}
       - name: emqx-data
diff --git a/deploy/charts/emqx/templates/_helpers.tpl b/deploy/charts/emqx/templates/_helpers.tpl
index ad01d5862..e55740b01 100644
--- a/deploy/charts/emqx/templates/_helpers.tpl
+++ b/deploy/charts/emqx/templates/_helpers.tpl
@@ -30,3 +30,15 @@ Create chart name and version as used by the chart label.
 {{- define "emqx.chart" -}}
 {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+
+
+{{/*
+Get ssl secret name .
+*/}}
+{{- define "emqx.ssl.secretName" -}}
+{{- if and .Values.ssl.useExisting .Values.ssl.existingName -}}
+    {{ .Values.ssl.existingName }}
+{{- else -}}
+    {{ include "emqx.fullname" . }}-tls
+{{- end -}}
+{{- end -}}