diff --git a/src/emqx_app.erl b/src/emqx_app.erl
index 47075922b..8e8ce4c1b 100644
--- a/src/emqx_app.erl
+++ b/src/emqx_app.erl
@@ -45,6 +45,7 @@ start(_Type, _Args) ->
 
 -spec(stop(State :: term()) -> term()).
 stop(_State) ->
+    emqx_alarm_handler:unload(),
     emqx_listeners:stop(),
     emqx_modules:unload().