diff --git a/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php b/src/Symfony/Component/Cache/Adapter/TraceableAdapter.php
index <HASH>..<HASH> 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 {
Remove extra arg in call to TraceableAdapter::start()