diff --git a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
index 72ce53a592..a765276dd7 100644
--- a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
+++ b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
@@ -110,7 +110,9 @@ class FormValidator extends ConstraintValidator
                 foreach ($constraints as $constraint) {
                     // For the "Valid" constraint, validate the data in all groups
                     if ($constraint instanceof Valid) {
-                        $validator->atPath('data')->validate($data, $constraint, $groups);
+                        if (\is_object($data)) {
+                            $validator->atPath('data')->validate($data, $constraint, $groups);
+                        }
 
                         continue;
                     }