diff --git a/src/allmydata/test/common.py b/src/allmydata/test/common.py
index dbd93df67..b69d58ab9 100644
--- a/src/allmydata/test/common.py
+++ b/src/allmydata/test/common.py
@@ -52,7 +52,6 @@ from twisted.internet.defer import inlineCallbacks, returnValue
 from twisted.internet.interfaces import IPullProducer
 from twisted.python import failure
 from twisted.python.filepath import FilePath
-from twisted.application import service
 from twisted.web.error import Error as WebError
 from twisted.internet.interfaces import (
     IStreamServerEndpointStringParser,