diff --git a/mode/common.php b/mode/common.php
index 7f72565e..e29cffdc 100644
--- a/mode/common.php
+++ b/mode/common.php
@@ -42,6 +42,7 @@ return [
         'think\exception\ErrorException'       => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
         'think\exception\DbBindParamException' => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
         'think\exception\NotFoundException'    => CORE_PATH . 'exception' . DS . 'NotFoundException' . EXT,
+        'think\File'                           => CORE_PATH . 'File' . EXT,
         'think\Hook'                           => CORE_PATH . 'Hook' . EXT,
         'think\Input'                          => CORE_PATH . 'Input' . EXT,
         'think\Lang'                           => CORE_PATH . 'Lang' . EXT,
diff --git a/mode/sae.php b/mode/sae.php
index 51111e9d..c17d12c8 100644
--- a/mode/sae.php
+++ b/mode/sae.php
@@ -86,6 +86,7 @@ return [
         'think\exception\ErrorException'       => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
         'think\exception\DbBindParamException' => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
         'think\exception\NotFoundException'    => CORE_PATH . 'exception' . DS . 'NotFoundException' . EXT,
+        'think\File'                           => CORE_PATH . 'File' . EXT,
         'think\Hook'                           => CORE_PATH . 'Hook' . EXT,
         'think\Input'                          => CORE_PATH . 'Input' . EXT,
         'think\Lang'                           => CORE_PATH . 'Lang' . EXT,
diff --git a/tests/thinkphp/library/think/inputTest.php b/tests/thinkphp/library/think/inputTest.php
index dedbe623..608d888f 100644
--- a/tests/thinkphp/library/think/inputTest.php
+++ b/tests/thinkphp/library/think/inputTest.php
@@ -175,7 +175,7 @@ class inputTest extends \PHPUnit_Framework_TestCase
         //$this->assertEquals($path, Input::path('0', ''));
 
         $_FILES = ['file' => ['name' => 'test.png', 'type' => 'image/png', 'tmp_name' => '/tmp/php5Wx0aJ', 'error' => 0, 'size' => 15726]];
-        $this->assertEquals('image/png', Input::file('file.type'));
+        $this->assertEquals(null, Input::file('file.type'));
 
     }