diff --git a/apps/emqx_s3/src/emqx_s3_schema.erl b/apps/emqx_s3/src/emqx_s3_schema.erl
index 5866f8c2b..a9b5e97e9 100644
--- a/apps/emqx_s3/src/emqx_s3_schema.erl
+++ b/apps/emqx_s3/src/emqx_s3_schema.erl
@@ -124,7 +124,7 @@ fields(transport_options) ->
             mk(
                 boolean(),
                 #{
-                    default => true,
+                    default => false,
                     desc => ?DESC("ipv6_probe"),
                     required => false
                 }