diff --git a/tox.ini b/tox.ini
index c7f021a..02d17c9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,5 +23,4 @@
     PYTHONPATH = {toxinidir}
     POSTORIUS_VCR_RECORD_MODE = all
 commands =
-    pip install -e ../mailman.client
     django-admin.py test --settings=testing.test_settings {posargs:postorius}