diff --git a/apps/emqx_connector/src/emqx_connector_http.erl b/apps/emqx_connector/src/emqx_connector_http.erl
index 77d498c6b..509e293cf 100644
--- a/apps/emqx_connector/src/emqx_connector_http.erl
+++ b/apps/emqx_connector/src/emqx_connector_http.erl
@@ -112,7 +112,7 @@ If the request is provided, the caller can send HTTP requests via
 <code>emqx_resource:query(ResourceId, {send_message, BridgeId, Message})</code>
 """
          })}
-    ] ++ emqx_connector_schema:common_fields() ++ emqx_connector_schema_lib:ssl_fields();
+    ] ++ emqx_connector_schema_lib:ssl_fields();
 
 fields("request") ->
     [ {method, hoconsc:mk(hoconsc:enum([post, put, get, delete]), #{nullable => true})}
diff --git a/apps/emqx_connector/src/emqx_connector_schema.erl b/apps/emqx_connector/src/emqx_connector_schema.erl
index ed663ee60..33d10802b 100644
--- a/apps/emqx_connector/src/emqx_connector_schema.erl
+++ b/apps/emqx_connector/src/emqx_connector_schema.erl
@@ -8,8 +8,6 @@
 
 -export([roots/0, fields/1]).
 
--export([common_fields/0]).
-
 -export([ get_response/0
         , put_request/0
         , post_request/0
@@ -51,10 +49,3 @@ fields("connectors") ->
 
 schema_mod(Type) ->
     list_to_atom(lists:concat(["emqx_connector_", Type])).
-
-common_fields() ->
-    [ {name,
-       mk(binary(),
-          #{ desc => "Connector name, used as a human-readable description of the connector."
-           })}
-    ].
diff --git a/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl b/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl
index 44add053c..b3484f5d9 100644
--- a/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl
+++ b/apps/emqx_connector/src/mqtt/emqx_connector_mqtt_schema.erl
@@ -55,6 +55,11 @@ clientid conflicts between different nodes. And we can only use shared subscript
 topic filters for 'remote_topic' of ingress connections.
 """
             })}
+    , {name,
+       sc(binary(),
+          #{ nullable => true
+           , desc => "Connector name, used as a human-readable description of the connector."
+           })}
     , {server,
         sc(emqx_schema:ip_port(),
            #{ default => "127.0.0.1:1883"
@@ -94,7 +99,7 @@ topic filters for 'remote_topic' of ingress connections.
 Queue messages in disk files.
 """
             })}
-    ] ++ emqx_connector_schema:common_fields() ++ emqx_connector_schema_lib:ssl_fields();
+    ] ++ emqx_connector_schema_lib:ssl_fields();
 
 fields("ingress") ->
     %% the message maybe subscribed by rules, in this case 'local_topic' is not necessary
diff --git a/apps/emqx_resource/src/emqx_resource_instance.erl b/apps/emqx_resource/src/emqx_resource_instance.erl
index ebc812805..c23d55511 100644
--- a/apps/emqx_resource/src/emqx_resource_instance.erl
+++ b/apps/emqx_resource/src/emqx_resource_instance.erl
@@ -217,7 +217,7 @@ do_restart(InstId) ->
     case lookup(InstId) of
         {ok, #{mod := Mod, state := ResourceState, config := Config} = Data} ->
             _ = case ResourceState of
-                undefine -> ok;
+                undefined -> ok;
                 _ -> emqx_resource:call_stop(InstId, Mod, ResourceState)
             end,
             case emqx_resource:call_start(InstId, Mod, Config) of