diff --git a/src/Logger/AppEngineFlexHandler.php b/src/Logger/AppEngineFlexHandler.php
index bcfe8d8c5004..73c048fa9a15 100644
--- a/src/Logger/AppEngineFlexHandler.php
+++ b/src/Logger/AppEngineFlexHandler.php
@@ -29,7 +29,7 @@ class AppEngineFlexHandler extends StreamHandler
      * @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not.
      * @param int|null $filePermission Optional file permissions (default (0640) are only for owner read/write).
      * @param Boolean $useLocking Try to lock log file before doing any writes.
-     * @param resource|string $stream
+     * @param resource|string|null $stream
      */
     public function __construct(
         $level = Logger::INFO,
diff --git a/tests/Logger/AppEngineFlexHandlerTest.php b/tests/Logger/AppEngineFlexHandlerTest.php
index f8ea16754b33..620596190479 100644
--- a/tests/Logger/AppEngineFlexHandlerTest.php
+++ b/tests/Logger/AppEngineFlexHandlerTest.php
@@ -23,7 +23,7 @@
 class AppEngineFlexHandlerTest extends \PHPUnit_Framework_TestCase
 {
     private $path;
-    private $handler;
+    private $log;
 
     public function setUp()
     {