diff --git a/apps/emqx_bridge_s3/src/emqx_bridge_s3.erl b/apps/emqx_bridge_s3/src/emqx_bridge_s3.erl
index 6a2f93b3c..335b4bf11 100644
--- a/apps/emqx_bridge_s3/src/emqx_bridge_s3.erl
+++ b/apps/emqx_bridge_s3/src/emqx_bridge_s3.erl
@@ -56,13 +56,7 @@ fields("config_connector") ->
     lists:append([
         emqx_connector_schema:common_fields(),
         fields(s3_connector_config),
-        [
-            {resource_opts,
-                hoconsc:mk(
-                    ?R_REF(s3_connector_resource_opts),
-                    emqx_resource_schema:resource_opts_meta()
-                )}
-        ]
+        emqx_connector_schema:resource_opts_ref(?MODULE, s3_connector_resource_opts)
     ]);
 fields(?ACTION) ->
     emqx_bridge_v2_schema:make_producer_action_schema(
diff --git a/apps/emqx_bridge_s3/src/emqx_bridge_s3_connector.erl b/apps/emqx_bridge_s3/src/emqx_bridge_s3_connector.erl
index e54a22811..9a0f110fe 100644
--- a/apps/emqx_bridge_s3/src/emqx_bridge_s3_connector.erl
+++ b/apps/emqx_bridge_s3/src/emqx_bridge_s3_connector.erl
@@ -46,7 +46,7 @@
 }.
 
 -type state() :: #{
-    pool_name => resource_id(),
+    pool_name := resource_id(),
     pool_pid => pid(),
     client_config := emqx_s3_client:config(),
     channels := #{channel_id() => channel_state()}