diff --git a/library/think/File.php b/library/think/File.php
index 43f38575..60a16417 100644
--- a/library/think/File.php
+++ b/library/think/File.php
@@ -39,7 +39,7 @@ class File extends SplFileObject
     public function __construct($filename, $mode = 'r')
     {
         parent::__construct($filename, $mode);
-        $this->filename = $this->getRealPath();
+        $this->filename = $this->getRealPath() ?: $this->getPathname();
     }
 
     /**