diff --git a/components/event_dispatcher/introduction.rst b/components/event_dispatcher/introduction.rst
index 82fb8625e1d..defaecb5354 100644
--- a/components/event_dispatcher/introduction.rst
+++ b/components/event_dispatcher/introduction.rst
@@ -20,7 +20,7 @@ or after a method is executed, without interfering with other plugins. This is
 not an easy problem to solve with single inheritance, and multiple inheritance
 (were it possible with PHP) has its own drawbacks.
 
-The Symfony2 Event Dispatcher component implements the `Observer`_ pattern in
+The Symfony2 Event Dispatcher component implements the `Mediator`_ pattern in
 a simple and effective way to make all these things possible and to make your
 projects truly extensible.
 
@@ -492,7 +492,7 @@ listener via the
 Now, any listeners to ``store.order`` that have not yet been called will *not*
 be called.
 
-.. _Observer: http://en.wikipedia.org/wiki/Observer_pattern
+.. _Mediator: http://en.wikipedia.org/wiki/Mediator_pattern
 .. _Closures: http://php.net/manual/en/functions.anonymous.php
 .. _PHP callable: http://www.php.net/manual/en/language.pseudo-types.php#language.types.callback
 .. _Packagist: https://packagist.org/packages/symfony/event-dispatcher