diff --git a/library/think/Request.php b/library/think/Request.php
index 7e9949a8..5fc889e2 100644
--- a/library/think/Request.php
+++ b/library/think/Request.php
@@ -59,6 +59,11 @@ class Request
      */
     protected $routeInfo = [];
 
+    /**
+     * @var array 环境变量
+     */
+    protected $env;
+
     /**
      * @var array 当前调度信息
      */