diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index f4ff9a2ad..1ef499276 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -7,6 +7,7 @@
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]}]},
    {"4.3.13",
     [{load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
@@ -448,6 +449,7 @@
      {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
      {load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
      {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
      {load_module,emqx_hooks,brutal_purge,soft_purge,[]}]},
    {"4.3.13",
     [{load_module,emqx_shared_sub,brutal_purge,soft_purge,[]},
diff --git a/src/emqx_shared_sub.erl b/src/emqx_shared_sub.erl
index aa8168480..01aac200f 100644
--- a/src/emqx_shared_sub.erl
+++ b/src/emqx_shared_sub.erl
@@ -144,7 +144,6 @@ strategy(Group) ->
     case emqx:get_env(shared_subscription_strategy_per_group, #{}) of
         #{Group := Strategy} ->
             Strategy;
-
         _ ->
             emqx:get_env(shared_subscription_strategy, random)
     end.