diff --git a/calibre-plugin/jobs.py b/calibre-plugin/jobs.py
index ffe0b6cc..4cc3b423 100644
--- a/calibre-plugin/jobs.py
+++ b/calibre-plugin/jobs.py
@@ -16,8 +16,6 @@ from io import StringIO
 from collections import defaultdict
 import sys
 
-from calibre.utils.ipc.server import Empty, Server
-from calibre.utils.ipc.job import ParallelJob
 from calibre.utils.date import local_tz
 
 # pulls in translation files for _() strings