diff --git a/src/Symfony/Component/Form/Extension/Validator/EventListener/ValidationListener.php b/src/Symfony/Component/Form/Extension/Validator/EventListener/ValidationListener.php
index 26d2bfdaa7..62c59ddc43 100644
--- a/src/Symfony/Component/Form/Extension/Validator/EventListener/ValidationListener.php
+++ b/src/Symfony/Component/Form/Extension/Validator/EventListener/ValidationListener.php
@@ -13,7 +13,8 @@ namespace Symfony\Component\Form\Extension\Validator\EventListener;
 
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\Form\Extension\Validator\ViolationMapper\ViolationMapperInterface;
-use Symfony\Component\Validator\ValidatorInterface;
+use Symfony\Component\Validator\Validator\ValidatorInterface;
+use Symfony\Component\Validator\ValidatorInterface as LegacyValidatorInterface;
 use Symfony\Component\Form\FormEvents;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\Extension\Validator\Constraints\Form;
@@ -35,8 +36,16 @@ class ValidationListener implements EventSubscriberInterface
         return array(FormEvents::POST_SUBMIT => 'validateForm');
     }
 
-    public function __construct(ValidatorInterface $validator, ViolationMapperInterface $violationMapper)
+    /**
+     * @param ValidatorInterface|LegacyValidatorInterface $validator
+     * @param ViolationMapperInterface                    $violationMapper
+     */
+    public function __construct($validator, ViolationMapperInterface $violationMapper)
     {
+        if (!$validator instanceof ValidatorInterface && !$validator instanceof LegacyValidatorInterface) {
+            throw new \InvalidArgumentException('Validator must be instance of Symfony\Component\Validator\Validator\ValidatorInterface or Symfony\Component\Validator\ValidatorInterface');
+        }
+
         $this->validator = $validator;
         $this->violationMapper = $violationMapper;
     }
diff --git a/src/Symfony/Component/Form/Extension/Validator/Type/FormTypeValidatorExtension.php b/src/Symfony/Component/Form/Extension/Validator/Type/FormTypeValidatorExtension.php
index 344bddadc1..644a46db93 100644
--- a/src/Symfony/Component/Form/Extension/Validator/Type/FormTypeValidatorExtension.php
+++ b/src/Symfony/Component/Form/Extension/Validator/Type/FormTypeValidatorExtension.php
@@ -14,7 +14,8 @@ namespace Symfony\Component\Form\Extension\Validator\Type;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\Extension\Validator\ViolationMapper\ViolationMapper;
 use Symfony\Component\Form\Extension\Validator\EventListener\ValidationListener;
-use Symfony\Component\Validator\ValidatorInterface;
+use Symfony\Component\Validator\Validator\ValidatorInterface;
+use Symfony\Component\Validator\ValidatorInterface as LegacyValidatorInterface;
 use Symfony\Component\OptionsResolver\Options;
 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 
@@ -33,8 +34,15 @@ class FormTypeValidatorExtension extends BaseValidatorExtension
      */
     private $violationMapper;
 
-    public function __construct(ValidatorInterface $validator)
+    /**
+     * @param ValidatorInterface|LegacyValidatorInterface $validator
+     */
+    public function __construct($validator)
     {
+        if (!$validator instanceof ValidatorInterface && !$validator instanceof LegacyValidatorInterface) {
+            throw new \InvalidArgumentException('Validator must be instance of Symfony\Component\Validator\Validator\ValidatorInterface or Symfony\Component\Validator\ValidatorInterface');
+        }
+
         $this->validator = $validator;
         $this->violationMapper = new ViolationMapper();
     }
diff --git a/src/Symfony/Component/Form/Extension/Validator/ValidatorExtension.php b/src/Symfony/Component/Form/Extension/Validator/ValidatorExtension.php
index 572a4ac938..88890ae651 100644
--- a/src/Symfony/Component/Form/Extension/Validator/ValidatorExtension.php
+++ b/src/Symfony/Component/Form/Extension/Validator/ValidatorExtension.php
@@ -13,8 +13,10 @@ namespace Symfony\Component\Form\Extension\Validator;
 
 use Symfony\Component\Form\Extension\Validator\Constraints\Form;
 use Symfony\Component\Form\AbstractExtension;
-use Symfony\Component\Validator\ValidatorInterface;
 use Symfony\Component\Validator\Constraints\Valid;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+use Symfony\Component\Validator\Validator\ValidatorInterface;
+use Symfony\Component\Validator\ValidatorInterface as LegacyValidatorInterface;
 
 /**
  * Extension supporting the Symfony2 Validator component in forms.
@@ -25,17 +27,32 @@ class ValidatorExtension extends AbstractExtension
 {
     private $validator;
 
-    public function __construct(ValidatorInterface $validator)
+    /**
+     * @param ValidatorInterface|LegacyValidatorInterface $validator
+     */
+    public function __construct($validator)
     {
-        $this->validator = $validator;
+        // since validator apiVersion 2.5
+        if ($validator instanceof ValidatorInterface) {
+            $this->validator = $validator;
+
+            /** @var $metadata ClassMetadata */
+            $metadata = $this->validator->getMetadataFor('Symfony\Component\Form\Form');
+        // until validator apiVersion 2.4
+        } elseif ($validator instanceof LegacyValidatorInterface) {
+            $this->validator = $validator;
+
+            /** @var $metadata ClassMetadata */
+            $metadata = $this->validator->getMetadataFactory()->getMetadataFor('Symfony\Component\Form\Form');
+        } else {
+            throw new \InvalidArgumentException('Validator must be instance of Symfony\Component\Validator\Validator\ValidatorInterface or Symfony\Component\Validator\ValidatorInterface');
+        }
 
         // Register the form constraints in the validator programmatically.
         // This functionality is required when using the Form component without
         // the DIC, where the XML file is loaded automatically. Thus the following
         // code must be kept synchronized with validation.xml
 
-        /** @var \Symfony\Component\Validator\Mapping\ClassMetadata $metadata */
-        $metadata = $this->validator->getMetadataFactory()->getMetadataFor('Symfony\Component\Form\Form');
         $metadata->addConstraint(new Form());
         $metadata->addPropertyConstraint('children', new Valid());
     }
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/EventListener/ValidationListenerTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/EventListener/ValidationListenerTest.php
index 8d8f9235d1..d819277db0 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Validator/EventListener/ValidationListenerTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/EventListener/ValidationListenerTest.php
@@ -158,4 +158,30 @@ class ValidationListenerTest extends \PHPUnit_Framework_TestCase
 
         $this->listener->validateForm(new FormEvent($form, null));
     }
+
+    public function testValidatorInterfaceSinceSymfony25()
+    {
+        // Mock of ValidatorInterface since apiVersion 2.5
+        $validator = $this->getMock('Symfony\Component\Validator\Validator\ValidatorInterface');
+
+        $listener = new ValidationListener($validator, $this->violationMapper);
+        $this->assertAttributeSame($validator, 'validator', $listener);
+    }
+
+    public function testValidatorInterfaceUntilSymfony24()
+    {
+        // Mock of ValidatorInterface until apiVersion 2.4
+        $validator = $this->getMock('Symfony\Component\Validator\ValidatorInterface');
+
+        $listener = new ValidationListener($validator, $this->violationMapper);
+        $this->assertAttributeSame($validator, 'validator', $listener);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInvalidValidatorInterface()
+    {
+        new ValidationListener(null, $this->violationMapper);
+    }
 }
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
index 298306b57d..4ca10da50e 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/Type/FormTypeValidatorExtensionTest.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Form\Tests\Extension\Validator\Type;
 
+use Symfony\Component\Form\Extension\Validator\Type\FormTypeValidatorExtension;
 use Symfony\Component\Validator\ConstraintViolationList;
 
 class FormTypeValidatorExtensionTest extends BaseValidatorExtensionTest
@@ -36,6 +37,32 @@ class FormTypeValidatorExtensionTest extends BaseValidatorExtensionTest
         $form->submit(array());
     }
 
+    public function testValidatorInterfaceSinceSymfony25()
+    {
+        // Mock of ValidatorInterface since apiVersion 2.5
+        $validator = $this->getMock('Symfony\Component\Validator\Validator\ValidatorInterface');
+
+        $formTypeValidatorExtension = new FormTypeValidatorExtension($validator);
+        $this->assertAttributeSame($validator, 'validator', $formTypeValidatorExtension);
+    }
+
+    public function testValidatorInterfaceUntilSymfony24()
+    {
+        // Mock of ValidatorInterface until apiVersion 2.4
+        $validator = $this->getMock('Symfony\Component\Validator\ValidatorInterface');
+
+        $formTypeValidatorExtension = new FormTypeValidatorExtension($validator);
+        $this->assertAttributeSame($validator, 'validator', $formTypeValidatorExtension);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInvalidValidatorInterface()
+    {
+        new FormTypeValidatorExtension(null);
+    }
+
     protected function createForm(array $options = array())
     {
         return $this->factory->create('form', null, $options);
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/ValidatorExtensionTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/ValidatorExtensionTest.php
new file mode 100644
index 0000000000..bc69231fe2
--- /dev/null
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/ValidatorExtensionTest.php
@@ -0,0 +1,93 @@
+<?php
+
+/*
+* This file is part of the Symfony package.
+*
+* (c) Fabien Potencier <fabien@symfony.com>
+*
+* For the full copyright and license information, please view the LICENSE
+* file that was distributed with this source code.
+*/
+
+namespace Symfony\Component\Form\Tests\Extension\Validator;
+
+use Symfony\Component\Form\Extension\Validator\ValidatorExtension;
+
+class ValidatorExtensionTest extends \PHPUnit_Framework_TestCase
+{
+    public function testValidatorInterfaceSinceSymfony25()
+    {
+        $classMetaData = $this->createClassMetaDataMock();
+
+        // Mock of ValidatorInterface since apiVersion 2.5
+        $validator = $this->getMock('Symfony\Component\Validator\Validator\ValidatorInterface');
+
+        $validator
+            ->expects($this->once())
+            ->method('getMetadataFor')
+            ->with($this->identicalTo('Symfony\Component\Form\Form'))
+            ->will($this->returnValue($classMetaData))
+        ;
+
+        $validatorExtension = new ValidatorExtension($validator);
+        $this->assertAttributeSame($validator, 'validator', $validatorExtension);
+    }
+
+    public function testValidatorInterfaceUntilSymfony24()
+    {
+        $classMetaData = $this->createClassMetaDataMock();
+
+        $metaDataFactory = $this->getMock('Symfony\Component\Validator\MetadataFactoryInterface');
+
+        $metaDataFactory
+            ->expects($this->once())
+            ->method('getMetadataFor')
+            ->with($this->identicalTo('Symfony\Component\Form\Form'))
+            ->will($this->returnValue($classMetaData))
+        ;
+
+        // Mock of ValidatorInterface until apiVersion 2.4
+        $validator = $this->getMock('Symfony\Component\Validator\ValidatorInterface');
+
+        $validator
+            ->expects($this->once())
+            ->method('getMetadataFactory')
+            ->will($this->returnValue($metaDataFactory))
+        ;
+
+        $validatorExtension = new ValidatorExtension($validator);
+        $this->assertAttributeSame($validator, 'validator', $validatorExtension);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInvalidValidatorInterface()
+    {
+        new ValidatorExtension(null);
+    }
+
+    /**
+     * @return mixed
+     */
+    private function createClassMetaDataMock()
+    {
+        $classMetaData = $this->getMockBuilder('Symfony\Component\Validator\Mapping\ClassMetadata')
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $classMetaData
+            ->expects($this->once())
+            ->method('addConstraint')
+            ->with($this->isInstanceOf('Symfony\Component\Form\Extension\Validator\Constraints\Form'));
+        $classMetaData
+            ->expects($this->once())
+            ->method('addPropertyConstraint')
+            ->with(
+                $this->identicalTo('children'),
+                $this->isInstanceOf('Symfony\Component\Validator\Constraints\Valid')
+            );
+
+        return $classMetaData;
+    }
+}