diff --git a/src/Symfony/Component/Form/AbstractType.php b/src/Symfony/Component/Form/AbstractType.php
index a515c395e9..0559ab3c88 100644
--- a/src/Symfony/Component/Form/AbstractType.php
+++ b/src/Symfony/Component/Form/AbstractType.php
@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Form;
 
+use Symfony\Component\Form\Exception\UnexpectedTypeException;
+
 abstract class AbstractType implements FormTypeInterface
 {
     private $extensions = array();
diff --git a/src/Symfony/Component/Form/FormTypeGuesserChain.php b/src/Symfony/Component/Form/FormTypeGuesserChain.php
index 1a4e98d674..0df653475a 100644
--- a/src/Symfony/Component/Form/FormTypeGuesserChain.php
+++ b/src/Symfony/Component/Form/FormTypeGuesserChain.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Form;
 
 use Symfony\Component\Form\Guess\Guess;
+use Symfony\Component\Form\Exception\UnexpectedTypeException;
 
 class FormTypeGuesserChain implements FormTypeGuesserInterface
 {