diff --git a/Event/ConsoleCommandEvent.php b/Event/ConsoleCommandEvent.php
index 08bd18fd1..1b4f9f9b1 100644
--- a/Event/ConsoleCommandEvent.php
+++ b/Event/ConsoleCommandEvent.php
@@ -12,7 +12,10 @@
 namespace Symfony\Component\Console\Event;
 
 /**
- * Allows to do things before the command is executed, like skipping the command or changing the input.
+ * Allows to do things before the command is executed, like skipping the command or executing code before the command is
+ * going to be executed.
+ *
+ * Changing the input arguments will have no effect.
  *
  * @author Fabien Potencier <fabien@symfony.com>
  */