diff --git a/etc/emqx.conf b/etc/emqx.conf
index 0162fae7c..99934f3ab 100644
--- a/etc/emqx.conf
+++ b/etc/emqx.conf
@@ -820,12 +820,12 @@ zone.internal.mqueue_store_qos0 = true
 ## Value: on | off
 zone.internal.enable_flapping_detect = off
 
-## See zone.$name.force_shutdown_policy
-##
-## Default:
-##   - 10000|32MB on ARCH_64 system
-##   - 10000|16MB on ARCH_32 sytem
-zone.internal.force_shutdown_policy = 100000|64MB
+# ## See zone.$name.force_shutdown_policy
+# ##
+# ## Default:
+# ##   - 10000|32MB on ARCH_64 system
+# ##   - 10000|16MB on ARCH_32 sytem
+# zone.internal.force_shutdown_policy = 100000|64MB
 
 ## All the topics will be prefixed with the mountpoint path if this option is enabled.
 ##
diff --git a/priv/emqx.schema b/priv/emqx.schema
index bbd0fb4ab..527e36a7a 100644
--- a/priv/emqx.schema
+++ b/priv/emqx.schema
@@ -923,7 +923,6 @@ end}.
 %% of queued MQTT messages of QoS 1 and 2.
 %% Zero or negative is to disable.
 {mapping, "zone.$name.force_shutdown_policy", "emqx.zones", [
-  {default, "default"},
   {datatype, string}
 ]}.
 
@@ -963,17 +962,6 @@ end}.
                                          count => list_to_integer(Count)}
                                end,
                     {force_gc_policy, GcPolicy};
-               ("force_shutdown_policy", "default") ->
-                    {DefaultLen, DefaultSize} =
-                        case WordSize = erlang:system_info(wordsize) of
-                            8 -> % arch_64
-                              {10000, cuttlefish_bytesize:parse("32MB")};
-                            4 -> % arch_32
-                              {10000, cuttlefish_bytesize:parse("16MB")}
-                        end,
-                    {force_shutdown_policy, #{message_queue_len => DefaultLen,
-                                              max_heap_size => DefaultSize div WordSize
-                                             }};
                ("force_shutdown_policy", Val) ->
                     [Len, Siz] = string:tokens(Val, "| "),
                     MaxSiz = case WordSize = erlang:system_info(wordsize) of