diff --git a/queue_job/jobrunner/channels.py b/queue_job/jobrunner/channels.py
index 1cce46083..8d2c97c7d 100644
--- a/queue_job/jobrunner/channels.py
+++ b/queue_job/jobrunner/channels.py
@@ -173,7 +173,16 @@ class ChannelJob:
 
     """
 
-    __slots__ = ("db_name", "channel", "uuid", "seq", "date_created", "priority", "eta")
+    __slots__ = (
+        "db_name",
+        "channel",
+        "uuid",
+        "seq",
+        "date_created",
+        "priority",
+        "eta",
+        "__weakref__",
+    )
 
     def __init__(self, db_name, channel, uuid, seq, date_created, priority, eta):
         self.db_name = db_name