diff --git a/src/extends.ts b/src/extends.ts
index ee937d5..bccfa10 100644
--- a/src/extends.ts
+++ b/src/extends.ts
@@ -333,7 +333,7 @@ ApiCall.prototype.addEventMsg = function (this: ApiCall) {
             if (Object.keys(this.otherBuff).intersection(Object.keys(msg)).length > 0) this.conn.refreshPower();
             break;
         case 'msg_s2c/LshdChange':
-            this.conn.lshd[msgKey] && PublicShared.mergeProperty(this.conn.lshd[msgKey], msg);
+            this.conn?.lshd?.[msgKey] && PublicShared.mergeProperty(this.conn.lshd[msgKey], msg);
             break;
     }
 };