diff --git a/app/Services/GatewayWorker/UserService.php b/app/Services/GatewayWorker/UserService.php
index 4890ce91..3711fcb7 100644
--- a/app/Services/GatewayWorker/UserService.php
+++ b/app/Services/GatewayWorker/UserService.php
@@ -29,7 +29,7 @@ class UserService extends BaseService
     {
         $userModel = UserModel::create([
             'username' => $username,
-            '$avatar' => $$avatar,
+            'avatar' => $avatar,
             'password' => md5($password),
             'nick_name' => $nickName,
             'created_at' => time()