diff --git a/tests/unit/test_pep425tags.py b/tests/unit/test_pep425tags.py
index 9b2366c27b6..03dbac87fd3 100644
--- a/tests/unit/test_pep425tags.py
+++ b/tests/unit/test_pep425tags.py
@@ -1,7 +1,6 @@
 import sys
 
 import pytest
-
 from mock import patch
 
 from pip._internal import pep425tags