diff --git a/src/Symfony/Component/DependencyInjection/TypedReference.php b/src/Symfony/Component/DependencyInjection/TypedReference.php
index 3765bc73f8..78d8edf0b0 100644
--- a/src/Symfony/Component/DependencyInjection/TypedReference.php
+++ b/src/Symfony/Component/DependencyInjection/TypedReference.php
@@ -20,7 +20,6 @@ class TypedReference extends Reference
 {
     private $type;
     private $name;
-    private $requiringClass;
 
     /**
      * @param string $id              The service identifier