diff --git a/CHANGELOG-2.1.md b/CHANGELOG-2.1.md
index 7408adb52e..3df43e0d3e 100644
--- a/CHANGELOG-2.1.md
+++ b/CHANGELOG-2.1.md
@@ -16,6 +16,7 @@ To get the diff between two versions, go to https://github.com/symfony/symfony/c
 
 ### FrameworkBundle
 
+ * added kernel.event_subscriber tag
  * added a way to create relative symlinks when running assets:install command (--relative option)
  * added Controller::getUser()
  * [BC BREAK] assets_base_urls and base_urls merging strategy has changed