diff --git a/lib/plugins/loader.js b/lib/plugins/loader.js
index e345b6c..b7b31dc 100644
--- a/lib/plugins/loader.js
+++ b/lib/plugins/loader.js
@@ -158,7 +158,9 @@ class PluginsLoader {
    * @param e icqq Events
    */
   async deal (e) {
-    e.bot = Bot
+    Object.defineProperty(e, 'bot', {
+      value: Bot
+    })
     /** 检查频道消息 */
     if (this.checkGuildMsg(e)) return
     /** 检查黑白名单 */