diff --git a/Creational/Pool/Processor.php b/Creational/Pool/Processor.php
index 0bb5e6742..957e91ff6 100644
--- a/Creational/Pool/Processor.php
+++ b/Creational/Pool/Processor.php
@@ -20,7 +20,7 @@ public function process($image)
         if ($this->processing++ < $this->maxProcesses) {
             $this->createWorker($image);
         } else {
-            $this->pushToWaitingQueue($worker);
+            $this->pushToWaitingQueue($image);
         }
     }