diff --git a/apps/emqx/test/emqx_authentication_SUITE.erl b/apps/emqx/test/emqx_authentication_SUITE.erl
index c9524203c..5be3521d9 100644
--- a/apps/emqx/test/emqx_authentication_SUITE.erl
+++ b/apps/emqx/test/emqx_authentication_SUITE.erl
@@ -297,7 +297,9 @@ t_update_config({init, Config}) ->
     ];
 t_update_config(Config) when is_list(Config) ->
     emqx_config_handler:add_handler([?CONF_ROOT], emqx_authentication_config),
-    ok = emqx_config_handler:add_handler([listeners, '?', '?', ?CONF_ROOT], emqx_authentication_config),
+    ok = emqx_config_handler:add_handler(
+        [listeners, '?', '?', ?CONF_ROOT], emqx_authentication_config
+    ),
     ok = register_provider(?config("auth1"), ?MODULE),
     ok = register_provider(?config("auth2"), ?MODULE),
     Global = ?config(global),