diff --git a/txpool/pool.py b/txpool/pool.py
index d191683..8742ba0 100644
--- a/txpool/pool.py
+++ b/txpool/pool.py
@@ -480,6 +480,8 @@ def pop_job(self):
 
 class WorkerProtocol(NetstringReceiver, ProcessProtocol):
 
+    MAX_LENGTH = sys.maxsize
+
     def __init__(self, worker):
         self.__worker = worker