diff --git a/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php b/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
index 152ae52385..f6e4c85625 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
@@ -21,8 +21,6 @@ use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
  */
 class ResolveParameterPlaceHoldersPass implements CompilerPassInterface
 {
-    private $parameterBag;
-
     /**
      * Processes the ContainerBuilder to resolve parameter placeholders.
      *