diff --git a/src/Symfony/Component/Messenger/Tests/Transport/AmqpExt/ConnectionTest.php b/src/Symfony/Component/Messenger/Tests/Transport/AmqpExt/ConnectionTest.php
index aad12f020f..6488e5fa54 100644
--- a/src/Symfony/Component/Messenger/Tests/Transport/AmqpExt/ConnectionTest.php
+++ b/src/Symfony/Component/Messenger/Tests/Transport/AmqpExt/ConnectionTest.php
@@ -449,7 +449,7 @@ class ConnectionTest extends TestCase
     public function testObfuscatePasswordInDsn()
     {
         $this->expectException('AMQPException');
-        $this->expectExceptionMessage('Could not connect to the AMQP server. Please verify the provided DSN. ({"host":"localhost","port":5672,"vhost":"\/","login":"user","password":"********"})');
+        $this->expectExceptionMessage('Could not connect to the AMQP server. Please verify the provided DSN. ({"host":"localhost","port":5672,"vhost":"/","login":"user","password":"********"})');
         $factory = new TestAmqpFactory(
             $amqpConnection = $this->createMock(\AMQPConnection::class),
             $amqpChannel = $this->createMock(\AMQPChannel::class),
diff --git a/src/Symfony/Component/Messenger/Transport/AmqpExt/Connection.php b/src/Symfony/Component/Messenger/Transport/AmqpExt/Connection.php
index 2821c34ad9..687d6169d6 100644
--- a/src/Symfony/Component/Messenger/Transport/AmqpExt/Connection.php
+++ b/src/Symfony/Component/Messenger/Transport/AmqpExt/Connection.php
@@ -384,7 +384,7 @@ class Connection
                 $credentials['password'] = '********';
                 unset($credentials['delay']);
 
-                throw new \AMQPException(sprintf('Could not connect to the AMQP server. Please verify the provided DSN. (%s).', json_encode($credentials)), 0, $e);
+                throw new \AMQPException(sprintf('Could not connect to the AMQP server. Please verify the provided DSN. (%s).', json_encode($credentials, \JSON_UNESCAPED_SLASHES)), 0, $e);
             }
             $this->amqpChannel = $this->amqpFactory->createChannel($connection);