diff --git a/apps/emqx/src/emqx_channel.erl b/apps/emqx/src/emqx_channel.erl
index 39bd81b40..eff03e8ed 100644
--- a/apps/emqx/src/emqx_channel.erl
+++ b/apps/emqx/src/emqx_channel.erl
@@ -1,4 +1,4 @@
-%--------------------------------------------------------------------
+%%--------------------------------------------------------------------
 %% Copyright (c) 2019-2022 EMQ Technologies Co., Ltd. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");