diff --git a/src/Symfony/Bridge/Swiftmailer/DataCollector/MessageDataCollector.php b/src/Symfony/Bridge/Swiftmailer/DataCollector/MessageDataCollector.php
index 3ae96a276f..36283496f6 100644
--- a/src/Symfony/Bridge/Swiftmailer/DataCollector/MessageDataCollector.php
+++ b/src/Symfony/Bridge/Swiftmailer/DataCollector/MessageDataCollector.php
@@ -21,6 +21,9 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Clément JOBEILI <clement.jobeili@gmail.com>
+ *
+ * @deprecated Deprecated since version 2.4, to be removed in 3.0. Use
+ *             MessageDataCollector of SwiftmailerBundle instead.
  */
 class MessageDataCollector extends DataCollector
 {