diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
index 73c8cfecc13ec..a1aa4250e2155 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
@@ -281,13 +281,16 @@ protected function getConstructor(array &$data, $class, array &$context, \Reflec
      * @param array            $context
      * @param \ReflectionClass $reflectionClass
      * @param array|bool       $allowedAttributes
+     * @param string|null      $format
      *
      * @return object
      *
      * @throws RuntimeException
      */
-    protected function instantiateObject(array &$data, $class, array &$context, \ReflectionClass $reflectionClass, $allowedAttributes)
+    protected function instantiateObject(array &$data, $class, array &$context, \ReflectionClass $reflectionClass, $allowedAttributes/*, $format = null*/)
     {
+        $format = func_num_args() >= 6 ? func_get_arg(5) : null;
+
         if (
             isset($context[static::OBJECT_TO_POPULATE]) &&
             is_object($context[static::OBJECT_TO_POPULATE]) &&
@@ -319,8 +322,18 @@ protected function instantiateObject(array &$data, $class, array &$context, \Ref
                         $params = array_merge($params, $data[$paramName]);
                     }
                 } elseif ($allowed && !$ignored && (isset($data[$key]) || array_key_exists($key, $data))) {
-                    $params[] = $data[$key];
-                    // don't run set for a parameter passed to the constructor
+                    $parameterData = $data[$key];
+                    try {
+                        if (null !== $constructorParameter->getClass()) {
+                            $parameterClass = $constructorParameter->getClass()->getName();
+                            $parameterData = $this->serializer->deserialize($parameterData, $parameterClass, $format, $context);
+                        }
+                    } catch (\ReflectionException $e) {
+                        throw new RuntimeException(sprintf('Could not determine the class of the parameter "%s".', $key), 0, $e);
+                    }
+
+                    // Don't run set for a parameter passed to the constructor
+                    $params[] = $parameterData;
                     unset($data[$key]);
                 } elseif ($constructorParameter->isDefaultValueAvailable()) {
                     $params[] = $constructorParameter->getDefaultValue();
diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
index 088b01f9f14c5..ba14000158b55 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
@@ -175,7 +175,7 @@ public function denormalize($data, $class, $format = null, array $context = arra
         $normalizedData = $this->prepareForDenormalization($data);
 
         $reflectionClass = new \ReflectionClass($class);
-        $object = $this->instantiateObject($normalizedData, $class, $context, $reflectionClass, $allowedAttributes);
+        $object = $this->instantiateObject($normalizedData, $class, $context, $reflectionClass, $allowedAttributes, $format);
 
         foreach ($normalizedData as $attribute => $value) {
             if ($this->nameConverter) {
diff --git a/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
index a0dc515ca30c8..6ea0f00409d00 100644
--- a/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
@@ -47,7 +47,7 @@ public function denormalize($data, $class, $format = null, array $context = arra
         $normalizedData = $this->prepareForDenormalization($data);
 
         $reflectionClass = new \ReflectionClass($class);
-        $object = $this->instantiateObject($normalizedData, $class, $context, $reflectionClass, $allowedAttributes);
+        $object = $this->instantiateObject($normalizedData, $class, $context, $reflectionClass, $allowedAttributes, $format);
 
         $classMethods = get_class_methods($object);
         foreach ($normalizedData as $attribute => $value) {
diff --git a/src/Symfony/Component/Serializer/Tests/Fixtures/DenormalizerDecoratorSerializer.php b/src/Symfony/Component/Serializer/Tests/Fixtures/DenormalizerDecoratorSerializer.php
new file mode 100644
index 0000000000000..06d36c4bd85ca
--- /dev/null
+++ b/src/Symfony/Component/Serializer/Tests/Fixtures/DenormalizerDecoratorSerializer.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Symfony\Component\Serializer\Tests\Fixtures;
+
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+use Symfony\Component\Serializer\SerializerInterface;
+
+/**
+ * @author Théo FIDRY <theo.fidry@gmail.com>
+ */
+class DenormalizerDecoratorSerializer implements SerializerInterface
+{
+    private $normalizer;
+
+    /**
+     * @param NormalizerInterface|DenormalizerInterface $normalizer
+     */
+    public function __construct($normalizer)
+    {
+        if (false === $normalizer instanceof NormalizerInterface && false === $normalizer instanceof DenormalizerInterface) {
+            throw new \InvalidArgumentException();
+        }
+
+        $this->normalizer = $normalizer;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function serialize($data, $format, array $context = array())
+    {
+        return $this->normalizer->normalize($data, $format, $context);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deserialize($data, $type, $format, array $context = array())
+    {
+        return $this->normalizer->denormalize($data, $type, $format, $context);
+    }
+}
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
index 5660dbc361d7d..c9df3c955f031 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
@@ -24,6 +24,19 @@ public function testDenormalize()
         $this->assertNull($normalizedData->bar);
         $this->assertSame('baz', $normalizedData->baz);
     }
+
+    /**
+     * @group legacy
+     */
+    public function testInstantiateObjectDenormalizer()
+    {
+        $data = array('foo' => 'foo', 'bar' => 'bar', 'baz' => 'baz');
+        $class = __NAMESPACE__.'\Dummy';
+        $context = array();
+
+        $normalizer = new AbstractObjectNormalizerDummy();
+        $normalizer->instantiateObject($data, $class, $context, new \ReflectionClass($class), array());
+    }
 }
 
 class AbstractObjectNormalizerDummy extends AbstractObjectNormalizer
@@ -45,6 +58,11 @@ protected function isAllowedAttribute($classOrObject, $attribute, $format = null
     {
         return in_array($attribute, array('foo', 'baz'));
     }
+
+    public function instantiateObject(array &$data, $class, array &$context, \ReflectionClass $reflectionClass, $allowedAttributes)
+    {
+        return parent::instantiateObject($data, $class, $context, $reflectionClass, $allowedAttributes);
+    }
 }
 
 class Dummy
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
index 8a09e516cd230..ad937e78d99bd 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
@@ -21,6 +21,7 @@
 use Symfony\Component\Serializer\SerializerInterface;
 use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 use Symfony\Component\Serializer\Tests\Fixtures\CircularReferenceDummy;
+use Symfony\Component\Serializer\Tests\Fixtures\DenormalizerDecoratorSerializer;
 use Symfony\Component\Serializer\Tests\Fixtures\MaxDepthDummy;
 use Symfony\Component\Serializer\Tests\Fixtures\SiblingHolder;
 use Symfony\Component\Serializer\Mapping\Loader\AnnotationLoader;
@@ -157,6 +158,49 @@ public function testConstructorWithObjectDenormalize()
         $this->assertEquals('bar', $obj->bar);
     }
 
+    public function testConstructorWithObjectTypeHintDenormalize()
+    {
+        $data = array(
+            'id' => 10,
+            'inner' => array(
+                'foo' => 'oof',
+                'bar' => 'rab',
+            ),
+        );
+
+        $normalizer = new ObjectNormalizer();
+        $serializer = new DenormalizerDecoratorSerializer($normalizer);
+        $normalizer->setSerializer($serializer);
+
+        $obj = $normalizer->denormalize($data, DummyWithConstructorObject::class);
+        $this->assertInstanceOf(DummyWithConstructorObject::class, $obj);
+        $this->assertEquals(10, $obj->getId());
+        $this->assertInstanceOf(ObjectInner::class, $obj->getInner());
+        $this->assertEquals('oof', $obj->getInner()->foo);
+        $this->assertEquals('rab', $obj->getInner()->bar);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Serializer\Exception\RuntimeException
+     * @expectedExceptionMessage Could not determine the class of the parameter "unknown".
+     */
+    public function testConstructorWithUnknownObjectTypeHintDenormalize()
+    {
+        $data = array(
+            'id' => 10,
+            'unknown' => array(
+                'foo' => 'oof',
+                'bar' => 'rab',
+            ),
+        );
+
+        $normalizer = new ObjectNormalizer();
+        $serializer = new DenormalizerDecoratorSerializer($normalizer);
+        $normalizer->setSerializer($serializer);
+
+        $normalizer->denormalize($data, DummyWithConstructorInexistingObject::class);
+    }
+
     public function testGroupsNormalize()
     {
         $classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
@@ -782,3 +826,32 @@ protected function isAllowedAttribute($classOrObject, $attribute, $format = null
         return false;
     }
 }
+
+class DummyWithConstructorObject
+{
+    private $id;
+    private $inner;
+
+    public function __construct($id, ObjectInner $inner)
+    {
+        $this->id = $id;
+        $this->inner = $inner;
+    }
+
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    public function getInner()
+    {
+        return $this->inner;
+    }
+}
+
+class DummyWithConstructorInexistingObject
+{
+    public function __construct($id, Unknown $unknown)
+    {
+    }
+}