diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
index 1f225a3f47..d53ca058d7 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php
@@ -171,8 +171,8 @@ abstract class Descriptor implements DescriptorInterface
     /**
      * Describes a container parameter.
      *
-     * @param parameter
-     * @param array $options
+     * @param string $parameter
+     * @param array  $options
      */
     abstract protected function describeContainerParameter($parameter, array $options = array());
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
index 545bc843db..2e3fd71b3e 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
@@ -375,8 +375,8 @@ class XmlDescriptor extends Descriptor
     }
 
     /**
-     * @param $parameter
-     * @param array $options
+     * @param string $parameter
+     * @param array  $options
      *
      * @return \DOMDocument
      */