diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
index ab0e271a12dc..9487f7e265ad 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -1583,7 +1583,7 @@ private function registerMessengerConfiguration(array $config, ContainerBuilder
             }, $messageConfiguration['senders']);
 
             $sendersId = 'messenger.senders.'.$message;
-            $sendersDefinition = $container->register($sendersId, RewindableGenerator::class)
+            $container->register($sendersId, RewindableGenerator::class)
                 ->setFactory('current')
                 ->addArgument(array(new IteratorArgument($senders)));
             $messageToSendersMapping[$message] = new Reference($sendersId);
diff --git a/src/Symfony/Component/Messenger/Stamp/ReceivedStamp.php b/src/Symfony/Component/Messenger/Stamp/ReceivedStamp.php
index cf9bfe6b3773..38eedd3625b2 100644
--- a/src/Symfony/Component/Messenger/Stamp/ReceivedStamp.php
+++ b/src/Symfony/Component/Messenger/Stamp/ReceivedStamp.php
@@ -14,7 +14,7 @@
 use Symfony\Component\Messenger\Middleware\SendMessageMiddleware;
 
 /**
- * Marker config for a received message.
+ * Marker stamp for a received message.
  *
  * This is mainly used by the `SendMessageMiddleware` middleware to identify
  * a message should not be sent if it was just received.
diff --git a/src/Symfony/Component/Messenger/Tests/EnvelopeTest.php b/src/Symfony/Component/Messenger/Tests/EnvelopeTest.php
index 4bbb6386af6b..449acd812558 100644
--- a/src/Symfony/Component/Messenger/Tests/EnvelopeTest.php
+++ b/src/Symfony/Component/Messenger/Tests/EnvelopeTest.php
@@ -39,7 +39,7 @@ public function testWithReturnsNewInstance()
         $this->assertNotSame($envelope, $envelope->with(new ReceivedStamp()));
     }
 
-    public function testGetLast()
+    public function testLast()
     {
         $receivedStamp = new ReceivedStamp();
         $envelope = new Envelope($dummy = new DummyMessage('dummy'), $receivedStamp);