diff --git a/letsencrypt_nginx/tests/dvsni_test.py b/letsencrypt_nginx/tests/dvsni_test.py
index e5f1b1d88..1ea7793cc 100644
--- a/letsencrypt_nginx/tests/dvsni_test.py
+++ b/letsencrypt_nginx/tests/dvsni_test.py
@@ -6,7 +6,6 @@ import shutil
 import mock
 
 from acme import challenges
-from acme import messages2
 
 from letsencrypt import achallenges
 from letsencrypt import errors