diff --git a/phpseclib/Net/SFTP.php b/phpseclib/Net/SFTP.php
index 43ad4f54..a3fc89f5 100644
--- a/phpseclib/Net/SFTP.php
+++ b/phpseclib/Net/SFTP.php
@@ -413,7 +413,7 @@ class Net_SFTP extends Net_SSH2
         );
 
         if (!defined('NET_SFTP_QUEUE_SIZE')) {
-            define('NET_SFTP_QUEUE_SIZE', 50);
+            define('NET_SFTP_QUEUE_SIZE', 32);
         }
     }