diff --git a/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php b/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
index e1d96bb4ef210..14acde0ec2d37 100644
--- a/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
@@ -269,13 +269,3 @@ protected function start($name)
         return $event;
     }
 }
-
-class TraceableAdapterEvent
-{
-    public $name;
-    public $start;
-    public $end;
-    public $result;
-    public $hits = 0;
-    public $misses = 0;
-}
diff --git a/src/Symfony/Component/Cache/Adapter/TraceableAdapterEvent.php b/src/Symfony/Component/Cache/Adapter/TraceableAdapterEvent.php
new file mode 100644
index 0000000000000..1ba02635014fb
--- /dev/null
+++ b/src/Symfony/Component/Cache/Adapter/TraceableAdapterEvent.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+/**
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TraceableAdapterEvent
+{
+    public $name;
+    public $start;
+    public $end;
+    public $result;
+    public $hits = 0;
+    public $misses = 0;
+}
diff --git a/src/Symfony/Component/Cache/LockRegistry.php b/src/Symfony/Component/Cache/LockRegistry.php
index 0aadf33d61cfb..fec8ea4ba0b15 100644
--- a/src/Symfony/Component/Cache/LockRegistry.php
+++ b/src/Symfony/Component/Cache/LockRegistry.php
@@ -50,6 +50,7 @@ class LockRegistry
         __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TagAwareAdapter.php',
         __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TagAwareAdapterInterface.php',
         __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TraceableAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TraceableAdapterEvent.php',
         __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TraceableTagAwareAdapter.php',
     );