diff --git a/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php b/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php
index bfcb5eda3b..266955bedb 100644
--- a/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php
+++ b/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php
@@ -129,13 +129,13 @@ class ParameterBag implements ParameterBagInterface
     /**
      * Removes a parameter.
      *
-     * @param string $key The key
+     * @param string $name The parameter name
      *
      * @api
      */
-    public function remove($key)
+    public function remove($name)
     {
-        unset($this->parameters[strtolower($key)]);
+        unset($this->parameters[strtolower($name)]);
     }
 
     /**