diff --git a/rel/files/emqttd.config.development b/rel/files/emqttd.config.development
index 76375d227..e50acbf52 100644
--- a/rel/files/emqttd.config.development
+++ b/rel/files/emqttd.config.development
@@ -1,8 +1,8 @@
 % -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
 %% ex: ft=erlang ts=4 sw=4 et
-[{kernel,
-    [{start_timer, true},
-     {start_pg2, true}
+[{kernel, [
+    {start_timer, true},
+    {start_pg2, true}
  ]},
  {sasl, [
     {sasl_error_logger, {file, "log/emqttd_sasl.log"}}
diff --git a/rel/files/emqttd.config.production b/rel/files/emqttd.config.production
index 6176e7a47..9ef73e771 100644
--- a/rel/files/emqttd.config.production
+++ b/rel/files/emqttd.config.production
@@ -1,8 +1,8 @@
 % -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
 %% ex: ft=erlang ts=4 sw=4 et
-[{kernel,
-    [{start_timer, true},
-     {start_pg2, true}
+[{kernel, [
+    {start_timer, true},
+    {start_pg2, true}
  ]},
  {sasl, [
     {sasl_error_logger, {file, "log/emqttd_sasl.log"}}