diff --git a/apps/emqx_conf/src/emqx_conf_schema.erl b/apps/emqx_conf/src/emqx_conf_schema.erl
index 01bba4117..914470ba4 100644
--- a/apps/emqx_conf/src/emqx_conf_schema.erl
+++ b/apps/emqx_conf/src/emqx_conf_schema.erl
@@ -259,7 +259,7 @@ fields(cluster_dns) ->
             )},
         {"record_type",
             sc(
-                hoconsc:enum([a, srv]),
+                hoconsc:enum([a, aaaa, srv]),
                 #{
                     default => a,
                     desc => ?DESC(cluster_dns_record_type),
diff --git a/changes/ce/feat-12467.en.md b/changes/ce/feat-12467.en.md
new file mode 100644
index 000000000..a0a05cc19
--- /dev/null
+++ b/changes/ce/feat-12467.en.md
@@ -0,0 +1 @@
+Support cluster discovery using AAAA DNS record type.