diff --git a/nacos/templates/configmap.yaml b/nacos/templates/configmap.yaml
index ad333a1..9529f0c 100644
--- a/nacos/templates/configmap.yaml
+++ b/nacos/templates/configmap.yaml
@@ -7,7 +7,7 @@ data:
   {{- with .Values.nacos.storage.db }}
   mysql.db.host: {{.host}}
   mysql.db.name: {{ .name }}
-  mysql.port: {{ .port | default 3306}}
+  mysql.port: {{ .port | default "3306"}}
   mysql.user: {{ .username }}
   mysql.password: {{ .password }}
   mysql.param: {{ .param | default "characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false" }}