diff --git a/pika/channel.py b/pika/channel.py
index 7cefced84..c39c72afb 100644
--- a/pika/channel.py
+++ b/pika/channel.py
@@ -50,7 +50,7 @@ def __init__(self, connection, channel_number, on_open_callback=None, force_bina
         self._blocked = collections.deque(list())
         self._blocking = None
         self._has_on_flow_callback = False
-        self._cancelled = collections.deque(list(), maxlen=10)
+        self._cancelled = collections.deque(list())
         self._consumers = dict()
         self._on_flowok_callback = None
         self._on_getok_callback = None