diff --git a/gim/business.ext.proto b/gim/business.ext.proto
index b2c672c..bc01a31 100644
--- a/gim/business.ext.proto
+++ b/gim/business.ext.proto
@@ -22,6 +22,7 @@ message SignInReq {
   string code = 2; // 验证码
   int64 device_id = 3; // 设备id
   int64 master_id = 4; // 站长id
+  string push_alia = 5; // 极光推送-别名
 }
 message SignInResp {
   bool is_new = 1; // 是否是新用户