diff --git a/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php b/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
index 1ddf65b301..9959199f67 100644
--- a/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
@@ -107,7 +107,7 @@ class TraceableAdapter implements AdapterInterface
      */
     public function getItems(array $keys = array())
     {
-        $event = $this->start(__FUNCTION__, $keys);
+        $event = $this->start(__FUNCTION__);
         try {
             $result = $this->pool->getItems($keys);
         } finally {