diff --git a/src/Symfony/Component/Validator/Validator.php b/src/Symfony/Component/Validator/Validator.php
index d20a623256..54ae2f9456 100644
--- a/src/Symfony/Component/Validator/Validator.php
+++ b/src/Symfony/Component/Validator/Validator.php
@@ -108,7 +108,7 @@ class Validator implements ValidatorInterface
             return $walker->walkConstraint($constraint, $value, $group, '');
         };
 
-        return $this->validateGraph($value, $walk, $groups);
+        return $this->validateGraph('', $walk, $groups);
     }
 
     protected function validateGraph($root, \Closure $walk, $groups = null)
diff --git a/tests/Symfony/Tests/Component/Validator/ValidatorTest.php b/tests/Symfony/Tests/Component/Validator/ValidatorTest.php
index 86c8ee98a6..c161a49970 100644
--- a/tests/Symfony/Tests/Component/Validator/ValidatorTest.php
+++ b/tests/Symfony/Tests/Component/Validator/ValidatorTest.php
@@ -148,9 +148,16 @@ class ValidatorTest extends \PHPUnit_Framework_TestCase
 
     public function testValidateValue()
     {
-        $result = $this->validator->validateValue('Bernhard', new FailingConstraint());
+        $violations = new ConstraintViolationList();
+        $violations->add(new ConstraintViolation(
+            '',
+            array(),
+            '',
+            '',
+            'Bernhard'
+        ));
 
-        $this->assertCount(1, $result);
+        $this->assertEquals($violations, $this->validator->validateValue('Bernhard', new FailingConstraint()));
     }
 
     public function testGetMetadataFactory()