diff --git a/apps/emqx_statsd/src/emqx_statsd_api.erl b/apps/emqx_statsd/src/emqx_statsd_api.erl
index 2278fa492..b267a9412 100644
--- a/apps/emqx_statsd/src/emqx_statsd_api.erl
+++ b/apps/emqx_statsd/src/emqx_statsd_api.erl
@@ -59,7 +59,7 @@ statsd(put, #{body := Body}) ->
                             Body,
                             #{rawconf_with_defaults => true, override_to => cluster}) of
         {ok, #{raw_config := NewConfig, config := Config}} ->
-            case maps:get(<<"enable">>, Body) of
+            _ = case maps:get(<<"enable">>, Body) of
                 true ->
                     _ = emqx_statsd_sup:stop_child(?APP),
                     emqx_statsd_sup:start_child(?APP, maps:get(config, Config));