diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/CachePoolPass.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/CachePoolPass.php
index 1748862219ddf..93adf546b7c7b 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/CachePoolPass.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/CachePoolPass.php
@@ -30,7 +30,7 @@ public function process(ContainerBuilder $container)
     {
         $namespaceSuffix = '';
 
-        foreach (array('name', 'root_dir', 'environment', 'debug') as $key) {
+        foreach (array('name', 'root_dir', 'environment') as $key) {
             if ($container->hasParameter('kernel.'.$key)) {
                 $namespaceSuffix .= '.'.$container->getParameter('kernel.'.$key);
             }