diff --git a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
index 14adf123ec41..9e167c82155c 100644
--- a/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
+++ b/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php
@@ -13,6 +13,7 @@
 
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Constraints\Composite;
 use Symfony\Component\Validator\Constraints\GroupSequence;
 use Symfony\Component\Validator\Constraints\Valid;
 use Symfony\Component\Validator\ConstraintValidator;
@@ -90,7 +91,9 @@ public function validate($form, Constraint $formConstraint)
                             $validator->atPath('data')->validate($form->getData(), $constraint, $group);
 
                             // Prevent duplicate validation
-                            continue 2;
+                            if (!$constraint instanceof Composite) {
+                                continue 2;
+                            }
                         }
                     }
                 }
diff --git a/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php b/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
index 4ab56f555a90..8a8af9ed6809 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Validator/Constraints/FormValidatorTest.php
@@ -24,6 +24,7 @@
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\SubmitButtonBuilder;
 use Symfony\Component\Translation\IdentityTranslator;
+use Symfony\Component\Validator\Constraints\Collection;
 use Symfony\Component\Validator\Constraints\GroupSequence;
 use Symfony\Component\Validator\Constraints\NotBlank;
 use Symfony\Component\Validator\Constraints\NotNull;
@@ -673,6 +674,63 @@ public function testCauseForNotAllowedExtraFieldsIsTheFormConstraint()
         $this->assertSame($constraint, $context->getViolations()->get(0)->getConstraint());
     }
 
+    public function testNonCompositeConstraintValidatedOnce()
+    {
+        $form = $this
+            ->getBuilder('form', null, [
+                'constraints' => [new NotBlank(['groups' => ['foo', 'bar']])],
+                'validation_groups' => ['foo', 'bar'],
+            ])
+            ->setCompound(false)
+            ->getForm();
+        $form->submit('');
+
+        $context = new ExecutionContext(Validation::createValidator(), $form, new IdentityTranslator());
+        $this->validator->initialize($context);
+        $this->validator->validate($form, new Form());
+
+        $this->assertCount(1, $context->getViolations());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[0]->getMessage());
+        $this->assertSame('data', $context->getViolations()[0]->getPropertyPath());
+    }
+
+    public function testCompositeConstraintValidatedInEachGroup()
+    {
+        $form = $this->getBuilder('form', null, [
+                'constraints' => [
+                    new Collection([
+                        'field1' => new NotBlank([
+                            'groups' => ['field1'],
+                        ]),
+                        'field2' => new NotBlank([
+                            'groups' => ['field2'],
+                        ]),
+                    ]),
+                ],
+                'validation_groups' => ['field1', 'field2'],
+            ])
+            ->setData([])
+            ->setCompound(true)
+            ->setDataMapper(new PropertyPathMapper())
+            ->getForm();
+        $form->add($this->getForm('field1'));
+        $form->add($this->getForm('field2'));
+        $form->submit([
+            'field1' => '',
+            'field2' => '',
+        ]);
+
+        $context = new ExecutionContext(Validation::createValidator(), $form, new IdentityTranslator());
+        $this->validator->initialize($context);
+        $this->validator->validate($form, new Form());
+
+        $this->assertCount(2, $context->getViolations());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[0]->getMessage());
+        $this->assertSame('data[field1]', $context->getViolations()[0]->getPropertyPath());
+        $this->assertSame('This value should not be blank.', $context->getViolations()[1]->getMessage());
+        $this->assertSame('data[field2]', $context->getViolations()[1]->getPropertyPath());
+    }
+
     protected function createValidator()
     {
         return new FormValidator();