diff --git a/tests/unit/test_loop.py b/tests/unit/test_loop.py
index f12368e..9043df6 100644
--- a/tests/unit/test_loop.py
+++ b/tests/unit/test_loop.py
@@ -1,5 +1,6 @@
 import asyncio
 import unittest
+
 import juju.loop
 
 
@@ -15,6 +16,7 @@
 
     def test_run(self):
         assert asyncio.get_event_loop() == self.loop
+
         async def _test():
             return 'success'
         self.assertEqual(juju.loop.run(_test()), 'success')