diff --git a/src/Symfony/Bridge/Twig/Extension/YamlExtension.php b/src/Symfony/Bridge/Twig/Extension/YamlExtension.php
index 389dc8ed1cbd6..63d658da3b6ed 100644
--- a/src/Symfony/Bridge/Twig/Extension/YamlExtension.php
+++ b/src/Symfony/Bridge/Twig/Extension/YamlExtension.php
@@ -39,7 +39,7 @@ public function encode($input, $inline = 0, $dumpObjects = false)
             $dumper = new YamlDumper();
         }
 
-        return $dumper->dump($input, $inline, false, $dumpObjects);
+        return $dumper->dump($input, $inline, 0, false, $dumpObjects);
     }
 
     public function dump($value, $inline = 0, $dumpObjects = false)