diff --git a/templates/opt/jxfd/config.yml.j2 b/templates/opt/jxfd/config.yml.j2
index fecf5ed..b652403 100644
--- a/templates/opt/jxfd/config.yml.j2
+++ b/templates/opt/jxfd/config.yml.j2
@@ -1,4 +1,4 @@
 mqtt:
   host: {{ jxfd_mqtt_server_host | default('localhost') }}
-  topics: {{ jxfd_mqtt_topics | default([]) }}
+  topics: {{ jxfd_mqtt_topics | default([]) | to_yaml }}
 device_sn: {{ jxfd_cleware_device_sn | default(None) }}
\ No newline at end of file