diff --git a/src/Symfony/Component/Form/ResolvedFormType.php b/src/Symfony/Component/Form/ResolvedFormType.php
index ff0a8057fbb4..3440324e4787 100644
--- a/src/Symfony/Component/Form/ResolvedFormType.php
+++ b/src/Symfony/Component/Form/ResolvedFormType.php
@@ -212,7 +212,7 @@ public function getOptionsResolver()
             $isNewOverwritten = $reflector->getDeclaringClass()->getName() !== 'Symfony\Component\Form\AbstractType';
 
             if ($isOldOverwritten && !$isNewOverwritten) {
-                trigger_error('The FormTypeInterface::setDefaultOptions() method is deprecated since version 2.7 and will be removed in 3.0. Use configureOptions() instead. This method will be added to the FormTypeInterface with Symfony 3.0.', E_USER_DEPRECATED);
+                trigger_error(get_class($this->innerType).': The FormTypeInterface::setDefaultOptions() method is deprecated since version 2.7 and will be removed in 3.0. Use configureOptions() instead. This method will be added to the FormTypeInterface with Symfony 3.0.', E_USER_DEPRECATED);
             }
 
             foreach ($this->typeExtensions as $extension) {
@@ -225,7 +225,7 @@ public function getOptionsResolver()
                 $isNewOverwritten = $reflector->getDeclaringClass()->getName() !== 'Symfony\Component\Form\AbstractTypeExtension';
 
                 if ($isOldOverwritten && !$isNewOverwritten) {
-                    trigger_error('The FormTypeExtensionInterface::setDefaultOptions() method is deprecated since version 2.7 and will be removed in 3.0. Use configureOptions() instead. This method will be added to the FormTypeExtensionInterface with Symfony 3.0.', E_USER_DEPRECATED);
+                    trigger_error(get_class($extension).': The FormTypeExtensionInterface::setDefaultOptions() method is deprecated since version 2.7 and will be removed in 3.0. Use configureOptions() instead. This method will be added to the FormTypeExtensionInterface with Symfony 3.0.', E_USER_DEPRECATED);
                 }
             }
         }