diff --git a/apps/emqx/src/emqx_authentication_sup.erl b/apps/emqx/src/emqx_authentication_sup.erl
index cdae04f3c..7b0d77f71 100644
--- a/apps/emqx/src/emqx_authentication_sup.erl
+++ b/apps/emqx/src/emqx_authentication_sup.erl
@@ -45,4 +45,4 @@ init([]) ->
               type => worker,
               modules => [emqx_authentication]},
 
-    {ok, {SupFlags, [AuthN]}}.
\ No newline at end of file
+    {ok, {SupFlags, [AuthN]}}.