diff --git a/letsencrypt-auto-source/tests/auto_test.py b/letsencrypt-auto-source/tests/auto_test.py
index 357e8302c..6fccdb56e 100644
--- a/letsencrypt-auto-source/tests/auto_test.py
+++ b/letsencrypt-auto-source/tests/auto_test.py
@@ -199,7 +199,7 @@ iQIDAQAB
              **kwargs)
     env.update(d)
     return out_and_err(
-        join(venv_dir, 'letsencrypt-auto') + ' --version',
+        join(venv_dir, 'certbot-auto') + ' --version',
         shell=True,
         env=env)