diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index 26a98b581a..563ba785fa 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -398,6 +398,8 @@ EOTXT;
             if (!$proxyDumper->isProxyCandidate($definition)) {
                 continue;
             }
+            // register class' reflector for resource tracking
+            $this->container->getReflectionClass($definition->getClass());
             $proxyCode = "\n".$proxyDumper->getProxyCode($definition);
             if ($strip) {
                 $proxyCode = "<?php\n".$proxyCode;
@@ -1043,10 +1045,10 @@ EOF;
             }
             $code .= <<<EOF
 
-protected function createProxy(\$class, \Closure \$factory)
-{
-    {$proxyLoader}return \$factory();
-}
+    protected function createProxy(\$class, \Closure \$factory)
+    {
+        {$proxyLoader}return \$factory();
+    }
 
 EOF;
             break;
diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 56dbc1f5f6..4df6362d9d 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -842,7 +842,7 @@ abstract class Kernel implements KernelInterface, RebootableInterface, Terminabl
         $dumper = new PhpDumper($container);
 
         if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper')) {
-            $dumper->setProxyDumper(new ProxyDumper(substr(hash('sha256', $cache->getPath()), 0, 7)));
+            $dumper->setProxyDumper(new ProxyDumper());
         }
 
         $content = $dumper->dump(array(