diff --git a/apps/emqx/test/emqx_common_test_helpers.erl b/apps/emqx/test/emqx_common_test_helpers.erl
index 16920d60b..e01f18a51 100644
--- a/apps/emqx/test/emqx_common_test_helpers.erl
+++ b/apps/emqx/test/emqx_common_test_helpers.erl
@@ -244,6 +244,9 @@ do_render_app_config(App, Schema, ConfigFile, Opts) ->
     copy_certs(App, RenderedConfigFile),
     ok.
 
+start_app(App, SpecAppConfig) ->
+    start_app(App, SpecAppConfig, #{}).
+
 start_app(App, SpecAppConfig, Opts) ->
     render_and_load_app_config(App, Opts),
     SpecAppConfig(App),
diff --git a/apps/emqx_ft/test/emqx_ft_test_helpers.erl b/apps/emqx_ft/test/emqx_ft_test_helpers.erl
index 956e63553..f054be762 100644
--- a/apps/emqx_ft/test/emqx_ft_test_helpers.erl
+++ b/apps/emqx_ft/test/emqx_ft_test_helpers.erl
@@ -42,7 +42,7 @@ start_additional_node(Config, Name) ->
 stop_additional_node(Node) ->
     ok = rpc:call(Node, ekka, leave, []),
     ok = rpc:call(Node, emqx_common_test_helpers, stop_apps, [[emqx_ft]]),
-    {ok, _} = emqx_common_test_helpers:stop_slave(Node),
+    ok = emqx_common_test_helpers:stop_slave(Node),
     ok.
 
 tcp_port(Node) ->