diff --git a/src/Symfony/Component/Form/Tests/AbstractLayoutTest.php b/src/Symfony/Component/Form/Tests/AbstractLayoutTest.php
index 52aaacd15a..752cddbdd7 100644
--- a/src/Symfony/Component/Form/Tests/AbstractLayoutTest.php
+++ b/src/Symfony/Component/Form/Tests/AbstractLayoutTest.php
@@ -58,7 +58,7 @@ abstract class AbstractLayoutTest extends FormIntegrationTestCase
 
     protected function assertMatchesXpath($html, $expression, $count = 1)
     {
-        $dom = new \DomDocument('UTF-8');
+        $dom = new \DOMDocument('UTF-8');
         try {
             // Wrap in <root> node so we can load HTML with multiple tags at
             // the top level