diff --git a/src/Symfony/Component/Form/FormFactory.php b/src/Symfony/Component/Form/FormFactory.php
index ca228ba31d..34e3666dbd 100644
--- a/src/Symfony/Component/Form/FormFactory.php
+++ b/src/Symfony/Component/Form/FormFactory.php
@@ -126,7 +126,13 @@ class FormFactory implements FormFactoryInterface
 
         // user options may override guessed options
         if ($typeGuess) {
-            $options = array_merge($typeGuess->getOptions(), $options);
+            $attrs = array();
+            $typeGuessOptions = $typeGuess->getOptions();
+            if (isset($typeGuessOptions['attr']) && isset($options['attr'])) {
+                $attrs = array('attr' => array_merge($typeGuessOptions['attr'], $options['attr']));
+            }
+
+            $options = array_merge($typeGuessOptions, $options, $attrs);
         }
 
         return $this->createNamedBuilder($property, $type, $data, $options);
diff --git a/src/Symfony/Component/Form/Tests/FormFactoryTest.php b/src/Symfony/Component/Form/Tests/FormFactoryTest.php
index 4185a4a002..2fcb33bc3e 100644
--- a/src/Symfony/Component/Form/Tests/FormFactoryTest.php
+++ b/src/Symfony/Component/Form/Tests/FormFactoryTest.php
@@ -450,7 +450,7 @@ class FormFactoryTest extends TestCase
                 ->with('Application\Author', 'firstName')
                 ->will($this->returnValue(new TypeGuess(
                     'text',
-                    array('attr' => array('maxlength' => 10)),
+                    array('attr' => array('class' => 'foo', 'maxlength' => 10)),
                     Guess::MEDIUM_CONFIDENCE
                 )));
 
@@ -458,7 +458,7 @@ class FormFactoryTest extends TestCase
 
         $factory->expects($this->once())
             ->method('createNamedBuilder')
-            ->with('firstName', 'text', null, array('attr' => array('maxlength' => 11)))
+            ->with('firstName', 'text', null, array('attr' => array('class' => 'foo', 'maxlength' => 11)))
             ->will($this->returnValue('builderInstance'));
 
         $this->builder = $factory->createBuilderForProperty(