diff --git a/nautilus/pool.py b/nautilus/pool.py
index 11fd633..f115f37 100644
--- a/nautilus/pool.py
+++ b/nautilus/pool.py
@@ -113,7 +113,7 @@ def __del__(self):
         Close the pool.
 
         """
-        for attr in ['shutdown', 'close']:
+        for attr in ['close', ]:
             if hasattr(self.pool, attr):
                 getattr(self.pool, attr)()
                 return