diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index 53b4a9ff7..dad0ca480 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -7,6 +7,7 @@
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_cm,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys_mon,brutal_purge,soft_purge,[]},
+     {load_module,emqx_sys,brutal_purge,soft_purge,[]},
      {load_module,emqx_connection,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_ctl,brutal_purge,soft_purge,[]},
@@ -16,6 +17,7 @@
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_cm,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys_mon,brutal_purge,soft_purge,[]},
+     {load_module,emqx_sys,brutal_purge,soft_purge,[]},
      {load_module,emqx_vm_mon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_ctl,brutal_purge,soft_purge,[]},
@@ -40,6 +42,7 @@
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_cm,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys_mon,brutal_purge,soft_purge,[]},
+     {load_module,emqx_sys,brutal_purge,soft_purge,[]},
      {load_module,emqx_connection,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_ctl,brutal_purge,soft_purge,[]},
@@ -49,6 +52,7 @@
      {load_module,emqx_pmon,brutal_purge,soft_purge,[]},
      {load_module,emqx_cm,brutal_purge,soft_purge,[]},
      {load_module,emqx_sys_mon,brutal_purge,soft_purge,[]},
+     {load_module,emqx_sys,brutal_purge,soft_purge,[]},
      {load_module,emqx_vm_mon,brutal_purge,soft_purge,[]},
      {load_module,emqx_banned,brutal_purge,soft_purge,[]},
      {load_module,emqx_ctl,brutal_purge,soft_purge,[]},