diff --git a/database/migrations/2021_11_19_142529_create_user_infos_table.php b/database/migrations/2021_11_19_142529_create_user_infos_table.php
index 4a47630b..6ec275dc 100644
--- a/database/migrations/2021_11_19_142529_create_user_infos_table.php
+++ b/database/migrations/2021_11_19_142529_create_user_infos_table.php
@@ -16,7 +16,7 @@ class CreateUserInfosTable extends Migration
         Schema::create('user_infos', function (Blueprint $table) {
             $table->id();
             $table->unsignedBigInteger('user_id')->unique()->comment('用户ID');
-            $table->unsignedBigInteger('inviter_id')->nullable()->comment('邀请人ID');
+            $table->unsignedBigInteger('inviter_id')->index()->nullable()->comment('邀请人ID');
             $table->string('nickname', 100)->nullable()->comment('昵称');
             $table->string('avatar')->nullable()->comment('头像');
             $table->enum('gender', ['male', 'female', 'unknown'])->default('unknown')->comment('性别：male 男性，female 女性，unknown 未知');