diff --git a/apps/emqx_gateway/src/exproto/emqx_exproto_channel.erl b/apps/emqx_gateway/src/exproto/emqx_exproto_channel.erl
index 64d4cb962..137682ff8 100644
--- a/apps/emqx_gateway/src/exproto/emqx_exproto_channel.erl
+++ b/apps/emqx_gateway/src/exproto/emqx_exproto_channel.erl
@@ -423,6 +423,9 @@ handle_info({hreply, FunName, ok}, Channel)
 handle_info({hreply, FunName, {error, Reason}}, Channel) ->
     {shutdown, {error, {FunName, Reason}}, Channel};
 
+handle_info({subscribe, _}, Channel) ->
+    {ok, Channel};
+
 handle_info(Info, Channel) ->
     ?SLOG(warning, #{ msg => "unexpected_info"
                     , info => Info
diff --git a/apps/emqx_gateway/src/mqttsn/emqx_sn_channel.erl b/apps/emqx_gateway/src/mqttsn/emqx_sn_channel.erl
index 4a0a49b91..26fa701da 100644
--- a/apps/emqx_gateway/src/mqttsn/emqx_sn_channel.erl
+++ b/apps/emqx_gateway/src/mqttsn/emqx_sn_channel.erl
@@ -1296,6 +1296,9 @@ handle_info(clean_authz_cache, Channel) ->
     ok = emqx_authz_cache:empty_authz_cache(),
     {ok, Channel};
 
+handle_info({subscribe, _}, Channel) ->
+   {ok, Channel};
+
 handle_info(Info, Channel) ->
     ?SLOG(error, #{ msg => "unexpected_info"
                   , info => Info
diff --git a/apps/emqx_gateway/src/stomp/emqx_stomp_channel.erl b/apps/emqx_gateway/src/stomp/emqx_stomp_channel.erl
index 5d0daabb7..a2ffb9662 100644
--- a/apps/emqx_gateway/src/stomp/emqx_stomp_channel.erl
+++ b/apps/emqx_gateway/src/stomp/emqx_stomp_channel.erl
@@ -777,6 +777,9 @@ handle_info(clean_authz_cache, Channel) ->
     ok = emqx_authz_cache:empty_authz_cache(),
     {ok, Channel};
 
+handle_info({subscribe, _}, Channel) ->
+    {ok, Channel};
+
 handle_info(Info, Channel) ->
     ?SLOG(error, #{ msg => "unexpected_info"
                   , info => Info
diff --git a/apps/emqx_modules/src/emqx_event_message_api.erl b/apps/emqx_modules/src/emqx_event_message_api.erl
index 65c33c0d7..e25edff97 100644
--- a/apps/emqx_modules/src/emqx_event_message_api.erl
+++ b/apps/emqx_modules/src/emqx_event_message_api.erl
@@ -15,10 +15,11 @@
 %%--------------------------------------------------------------------
 -module(emqx_event_message_api).
 
+-include("emqx_modules.hrl").
+
 -behaviour(minirest_api).
 
 -import(hoconsc, [mk/2, ref/2]).
--include("emqx_modules.hrl").
 
 -export([ api_spec/0
         , paths/0