diff --git a/etc/emqx.conf b/etc/emqx.conf
index 8f77d5f1b..6043dc361 100644
--- a/etc/emqx.conf
+++ b/etc/emqx.conf
@@ -443,8 +443,8 @@ log.file = emqx.log
 ## and Erlang process message queue inspection.
 ##
 ## Value: Integer or 'unlimited' (without quotes)
-## Default: 20
-#log.max_depth = 20
+## Default: 100
+#log.max_depth = 100
 
 ## Log formatter
 ## Value: text | json
diff --git a/priv/emqx.schema b/priv/emqx.schema
index 142a9acf4..86a2a2892 100644
--- a/priv/emqx.schema
+++ b/priv/emqx.schema
@@ -496,7 +496,7 @@ end}.
 %% @doc Maximum depth in Erlang term log formatting
 %% and message queue inspection.
 {mapping, "log.max_depth", "kernel.error_logger_format_depth", [
-  {default, 20},
+  {default, 100},
   {datatype, [{enum, [unlimited]}, integer]}
 ]}.