diff --git a/package.json b/package.json
index 45dc583..0254b90 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@wxhccc/es-util",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "description": "A library that contains some useful methods",
   "main": "dist/index.js",
   "module": "dist/index.esm.js",
diff --git a/src/page-communicate.ts b/src/page-communicate.ts
index f6686bd..1435d7e 100644
--- a/src/page-communicate.ts
+++ b/src/page-communicate.ts
@@ -42,7 +42,7 @@ export function pageCommunicate(options?: PcConfigOptions) {
 
   const channelName = 'PAGE_COMMUNICATE_CHANNEL'
 
-  if (typeof BroadcastChannel !== undefined) {
+  if (typeof window.BroadcastChannel !== undefined) {
     bc = new BroadcastChannel(channelName)
     bc.addEventListener('message', onMessage)
   } else {