diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 698b2bf696..d4e7b3d984 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -465,8 +465,8 @@ abstract class Kernel implements KernelInterface, TerminableInterface
                 $hierarchy[] = $name;
             }
 
-            foreach ($hierarchy as $bundle) {
-                $this->bundleMap[$bundle] = $bundleMap;
+            foreach ($hierarchy as $hierarchyBundle) {
+                $this->bundleMap[$hierarchyBundle] = $bundleMap;
                 array_pop($bundleMap);
             }
         }