diff --git a/doctrine-mapping.xsd b/doctrine-mapping.xsd
index b04e8a87c..e8448539c 100644
--- a/doctrine-mapping.xsd
+++ b/doctrine-mapping.xsd
@@ -276,13 +276,7 @@
 
   <xs:complexType name="custom-id-generator">
     <xs:sequence>
-      <xs:element name="args" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-              <xs:sequence>
-                  <xs:element name="arg" type="xs:string" minOccurs="1" maxOccurs="unbounded" />
-              </xs:sequence>
-          </xs:complexType>
-      </xs:element>
+      <xs:any minOccurs="0" maxOccurs="unbounded" namespace="##other"/>
     </xs:sequence>
     <xs:attribute name="class" type="xs:NMTOKEN" use="required" />
   </xs:complexType>
diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
index d68af7a14..c4329d417 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
@@ -520,16 +520,11 @@ class ClassMetadataFactory implements ClassMetadataFactoryInterface
                 break;
             case ClassMetadata::GENERATOR_TYPE_CUSTOM:
                 $definition = $class->customGeneratorDefinition;
-                try {
-                    $reflection = new \ReflectionClass($definition['class']);
-                    $args = isset($definition['args']) ?
-                        $definition['args'] : array();
-                    $generator = $reflection->newInstanceArgs($args);
-                    $class->setIdGenerator($generator);
-                } catch (ReflectionException $e) {
+                if (!class_exists($definition['class'])) {
                     throw new ORMException("Can't instantiate custom generator : " .
                         $definition['class']);
                 }
+                $class->setIdGenerator(new $definition['class']);
                 break;
             default:
                 throw new ORMException("Unknown generator type: " . $class->generatorType);
diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
index f6053c167..8b457ace2 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
@@ -188,7 +188,6 @@ class ClassMetadataInfo implements ClassMetadata
      * <code>
      * array(
      *     'class' => 'ClassName',
-     *     'args' => array("constructor", "arguments")
      * )
      * </code>
      *
diff --git a/lib/Doctrine/ORM/Mapping/CustomIdGenerator.php b/lib/Doctrine/ORM/Mapping/CustomIdGenerator.php
index a4a5d8e35..4739c3c81 100644
--- a/lib/Doctrine/ORM/Mapping/CustomIdGenerator.php
+++ b/lib/Doctrine/ORM/Mapping/CustomIdGenerator.php
@@ -27,6 +27,4 @@ final class CustomIdGenerator implements Annotation
 {
     /** @var string */
     public $class;
-    /** @var array */
-    public $args;
 }
\ No newline at end of file
diff --git a/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php b/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
index 05c949727..11b38756a 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
@@ -328,8 +328,7 @@ class AnnotationDriver implements Driver
                     throw MappingException::tableIdGeneratorNotImplemented($className);
                 } else if ($customGeneratorAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\CustomIdGenerator')) {
                     $metadata->setCustomGeneratorDefinition(array(
-                        'class' => $customGeneratorAnnot->class,
-                        'args' => $customGeneratorAnnot->args
+                        'class' => $customGeneratorAnnot->class
                     ));
                 }
             } else if ($oneToOneAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\OneToOne')) {
diff --git a/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php b/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php
index 094861fe7..86785a58b 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php
@@ -256,13 +256,8 @@ class XmlDriver extends AbstractFileDriver
                 ));
             } else if (isset($idElement->{'custom-id-generator'})) {
                 $customGenerator = $idElement->{'custom-id-generator'};
-                $args = array();
-                foreach ($customGenerator->args->children() as $argument) {
-                    $args[] = (string) $argument;
-                }
                 $metadata->setCustomGeneratorDefinition(array(
-                    'class' => (string) $customGenerator['class'],
-                    'args' => $args
+                    'class' => (string) $customGenerator['class']
                 ));
             } else if (isset($idElement->{'table-generator'})) {
                 throw MappingException::tableIdGeneratorNotImplemented($className);
diff --git a/lib/Doctrine/ORM/Mapping/Driver/YamlDriver.php b/lib/Doctrine/ORM/Mapping/Driver/YamlDriver.php
index 590e95998..b1f98915d 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/YamlDriver.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/YamlDriver.php
@@ -198,8 +198,7 @@ class YamlDriver extends AbstractFileDriver
                 } else if (isset($idElement['customIdGenerator'])) {
                     $customGenerator = $idElement['customIdGenerator'];
                     $metadata->setCustomGeneratorDefinition(array(
-                        'class' => (string) $customGenerator['class'],
-                        'args' => $customGenerator['args']
+                        'class' => (string) $customGenerator['class']
                     ));
                 } else if (isset($idElement['tableGenerator'])) {
                     throw MappingException::tableIdGeneratorNotImplemented($className);
diff --git a/tests/Doctrine/Tests/ORM/Mapping/AbstractMappingDriverTest.php b/tests/Doctrine/Tests/ORM/Mapping/AbstractMappingDriverTest.php
index 9c6f07389..5a7ccc453 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/AbstractMappingDriverTest.php
+++ b/tests/Doctrine/Tests/ORM/Mapping/AbstractMappingDriverTest.php
@@ -97,7 +97,7 @@ abstract class AbstractMappingDriverTest extends \Doctrine\Tests\OrmTestCase
         $this->assertEquals(ClassMetadata::GENERATOR_TYPE_CUSTOM,
             $class->generatorType, "Generator Type");
         $this->assertEquals(
-            array("class" => "stdClass", "args" => array("par1", "par2")),
+            array("class" => "stdClass"),
             $class->customGeneratorDefinition,
             "Custom Generator Definition");
     }
@@ -627,14 +627,14 @@ abstract class Animal
 {
     /**
      * @Id @Column(type="string") @GeneratedValue(strategy="CUSTOM")
-     * @CustomIdGenerator(class="stdClass", args={"par1", "par2"})
+     * @CustomIdGenerator(class="stdClass")
      */
     public $id;
 
     public static function loadMetadata(ClassMetadataInfo $metadata)
     {
         $metadata->setIdGeneratorType(ClassMetadataInfo::GENERATOR_TYPE_CUSTOM);
-        $metadata->setCustomGeneratorDefinition(array("class" => "stdClass", "args" => array("par1", "par2")));
+        $metadata->setCustomGeneratorDefinition(array("class" => "stdClass"));
     }
 }
 
diff --git a/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataFactoryTest.php b/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataFactoryTest.php
index ae97e34cc..04f413c95 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataFactoryTest.php
+++ b/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataFactoryTest.php
@@ -66,24 +66,6 @@ class ClassMetadataFactoryTest extends \Doctrine\Tests\OrmTestCase
             $actual->idGenerator);
     }
 
-    public function testGetMetadataFor_PasesArgumentsToGeneratorsConstructor()
-    {
-        $cm1 = $this->_createValidClassMetadata();
-        $cm1->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_CUSTOM);
-        $cm1->customGeneratorDefinition = array(
-            "class" => "Doctrine\Tests\ORM\Mapping\CustomIdGenerator",
-            "args" => array("parameter"));
-        $cmf = $this->_createTestFactory();
-        $cmf->setMetadataForClass($cm1->name, $cm1);
-        $expected = new CustomIdGenerator("parameter");
-
-        $actual = $cmf->getMetadataFor($cm1->name);
-
-        $this->assertEquals(ClassMetadata::GENERATOR_TYPE_CUSTOM,
-            $actual->generatorType);
-        $this->assertEquals($expected, $actual->idGenerator);
-    }
-
     public function testGetMetadataFor_ThrowsExceptionOnUnknownCustomGeneratorClass()
     {
         $cm1 = $this->_createValidClassMetadata();
@@ -261,11 +243,6 @@ class TestEntity1
 
 class CustomIdGenerator extends \Doctrine\ORM\Id\AbstractIdGenerator
 {
-    public $parameter;
-    public function __construct($parameter = null)
-    {
-        $this->parameter = $parameter;
-    }
     public function generate(\Doctrine\ORM\EntityManager $em, $entity)
     {
     }
diff --git a/tests/Doctrine/Tests/ORM/Mapping/php/Doctrine.Tests.ORM.Mapping.Animal.php b/tests/Doctrine/Tests/ORM/Mapping/php/Doctrine.Tests.ORM.Mapping.Animal.php
index 3ad0a0315..005178eed 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/php/Doctrine.Tests.ORM.Mapping.Animal.php
+++ b/tests/Doctrine/Tests/ORM/Mapping/php/Doctrine.Tests.ORM.Mapping.Animal.php
@@ -27,4 +27,4 @@ $metadata->mapField(array(
    'columnName' => 'id',
   ));
 $metadata->setIdGeneratorType(ClassMetadataInfo::GENERATOR_TYPE_CUSTOM);
-$metadata->setCustomGeneratorDefinition(array("class" => "stdClass", "args" => array("par1", "par2")));
+$metadata->setCustomGeneratorDefinition(array("class" => "stdClass"));
diff --git a/tests/Doctrine/Tests/ORM/Mapping/xml/Doctrine.Tests.ORM.Mapping.Animal.dcm.xml b/tests/Doctrine/Tests/ORM/Mapping/xml/Doctrine.Tests.ORM.Mapping.Animal.dcm.xml
index 3c58d4ad8..6981d0ba6 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/xml/Doctrine.Tests.ORM.Mapping.Animal.dcm.xml
+++ b/tests/Doctrine/Tests/ORM/Mapping/xml/Doctrine.Tests.ORM.Mapping.Animal.dcm.xml
@@ -9,13 +9,8 @@
             <discriminator-mapping value="dog" class="Dog" />
         </discriminator-map>
         <id name="id" type="integer" column="id">
-            <generator strategy="CUSTOM"/>
-            <custom-id-generator class="stdClass">
-                <args>
-                    <arg>par1</arg>
-                    <arg>par2</arg>
-                </args>
-            </custom-id-generator>
+            <generator strategy="CUSTOM" />
+            <custom-id-generator class="stdClass" />
         </id>
     </entity>
 </doctrine-mapping>
\ No newline at end of file
diff --git a/tests/Doctrine/Tests/ORM/Mapping/yaml/Doctrine.Tests.ORM.Mapping.Animal.dcm.yml b/tests/Doctrine/Tests/ORM/Mapping/yaml/Doctrine.Tests.ORM.Mapping.Animal.dcm.yml
index 4f01be63b..8fdfe3076 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/yaml/Doctrine.Tests.ORM.Mapping.Animal.dcm.yml
+++ b/tests/Doctrine/Tests/ORM/Mapping/yaml/Doctrine.Tests.ORM.Mapping.Animal.dcm.yml
@@ -10,5 +10,4 @@ Doctrine\Tests\ORM\Mapping\Animal:
       generator:
         strategy: CUSTOM
       customIdGenerator:
-        class: stdClass
-        args: [ par1, par2 ]
\ No newline at end of file
+        class: stdClass
\ No newline at end of file