diff --git a/CHANGES-4.3.md b/CHANGES-4.3.md
index babc8cb17..ea45e0d69 100644
--- a/CHANGES-4.3.md
+++ b/CHANGES-4.3.md
@@ -22,7 +22,8 @@ File format:
 ### Bug fixes
 
 - Fix GET `/auth_clientid` and `/auth_username` counts. [#8655](https://github.com/emqx/emqx/pull/8655)
-- Add a idle timer for ExProto UDP client to avoid client leaking [#8628](https://github.com/emqx/emqx/pull/8628)
+- Add an idle timer for ExProto UDP client to avoid client leaking [#8628](https://github.com/emqx/emqx/pull/8628)
+- Fix GET `/listeners/` crashes when listener is not ready. [#8752](https://github.com/emqx/emqx/pull/8752)
 
 ## v4.3.18
 
diff --git a/apps/emqx_management/src/emqx_mgmt_api_listeners.erl b/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
index 461c91d84..10ad9f4d4 100644
--- a/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
+++ b/apps/emqx_management/src/emqx_mgmt_api_listeners.erl
@@ -72,5 +72,4 @@ format(Listeners) when is_list(Listeners) ->
     [ Info#{listen_on => list_to_binary(esockd:to_string(ListenOn))}
      || Info = #{listen_on := ListenOn} <- Listeners ];
 
-format({error, Reason}) -> [{error, Reason}].
-
+format({error, Reason}) -> [{error, iolist_to_binary(io_lib:format("~p", [Reason]))}].