diff --git a/.ci/docker-compose-file/conf.cluster.env b/.ci/docker-compose-file/conf.cluster.env
index f8469511b..2a10bd321 100644
--- a/.ci/docker-compose-file/conf.cluster.env
+++ b/.ci/docker-compose-file/conf.cluster.env
@@ -4,4 +4,5 @@ EMQX_CLUSTER__STATIC__SEEDS="[emqx@node1.emqx.io, emqx@node2.emqx.io]"
 EMQX_ZONES__DEFAULT__LISTENERS__MQTT_TCP__PROXY_PROTOCOL=true
 EMQX_ZONES__DEFAULT__LISTENERS__MQTT_WS__PROXY_PROTOCOL=true
 EMQX_LOG__CONSOLE_HANDLER__ENABLE=true
+EMQX_LOG__CONSOLE_HANDLER__LEVEL=debug
 EMQX_LOG__PRIMARY_LEVEL=debug