diff --git a/packages/hooks/use-lockscreen/index.ts b/packages/hooks/use-lockscreen/index.ts
index 41999acafd..d83e16f9d2 100644
--- a/packages/hooks/use-lockscreen/index.ts
+++ b/packages/hooks/use-lockscreen/index.ts
@@ -40,8 +40,8 @@ export const useLockscreen = (trigger: Ref<boolean>) => {
 
   const cleanup = () => {
     setTimeout(() => {
-      removeClass(document.body, hiddenCls.value)
-      if (withoutHiddenClass) {
+      removeClass(document?.body, hiddenCls.value)
+      if (withoutHiddenClass && document) {
         document.body.style.width = bodyWidth
       }
     }, 200)