diff --git a/src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php
index 80e250ad0f..e44da38d3b 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php
@@ -50,6 +50,8 @@ class RouterDataCollector extends DataCollector
                 $this->data['route'] = $this->guessRoute($request, $this->controllers[$request]);
             }
         }
+
+        unset($this->controllers[$request]);
     }
 
     protected function guessRoute(Request $request, $controller)
diff --git a/src/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php b/src/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php
index 5b2228ba1a..43dfaff5c5 100644
--- a/src/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php
+++ b/src/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php
@@ -135,6 +135,8 @@ class ProfilerListener implements EventSubscriberInterface
 
         if ($master) {
             $this->saveProfiles($profile);
+
+            unset($this->children);
         }
     }