diff --git a/src/allmydata/_auto_deps.py b/src/allmydata/_auto_deps.py
index f0195b1c0..fc68c6c35 100644
--- a/src/allmydata/_auto_deps.py
+++ b/src/allmydata/_auto_deps.py
@@ -106,7 +106,7 @@ deprecation_messages = [
     "The popen2 module is deprecated.  Use the subprocess module.",
     "the md5 module is deprecated; use hashlib instead",
     "twisted.web.error.NoResource is deprecated since Twisted 9.0.  See twisted.web.resource.NoResource.",
-    "twisted.internet.interfaces.IFinishableConsumer was deprecated in Twisted 11.1.0: Please use IConsumer (and IConsumer.unregisterProducer) instead."
+    "twisted.internet.interfaces.IFinishableConsumer was deprecated in Twisted 11.1.0: Please use IConsumer (and IConsumer.unregisterProducer) instead.",
     "the sets module is deprecated",
 ]