diff --git a/src/Watcher.php b/src/Watcher.php
index 64172fa..5719c54 100644
--- a/src/Watcher.php
+++ b/src/Watcher.php
@@ -82,6 +82,7 @@ public function __construct(Configuration $configuration, IndexerInterface $inde
         });
 
         EventLoop::disable($this->eventLoopWatcherId);
+        EventLoop::unreference($this->eventLoopWatcherId);
     }
 
     /**