diff --git a/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php b/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php
index 6a333c97d3b0..4b236a5b439b 100644
--- a/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php
+++ b/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php
@@ -149,7 +149,7 @@ public function process(ContainerBuilder $container)
                     continue;
                 }
 
-                $dispatcherDefinitions[] = $container->getDefinition($attributes['dispatcher']);
+                $dispatcherDefinitions[$attributes['dispatcher']] = $container->getDefinition($attributes['dispatcher']);
             }
 
             if (!$dispatcherDefinitions) {