diff --git a/OpenSSL/test/test_util.py b/OpenSSL/test/test_util.py
index 8d92a3c..24ccc1d 100644
--- a/OpenSSL/test/test_util.py
+++ b/OpenSSL/test/test_util.py
@@ -2,7 +2,6 @@
 from OpenSSL.test.util import TestCase
 
 
-
 class ErrorTests(TestCase):
     """
     Tests for handling of certain OpenSSL error cases.
@@ -13,5 +12,7 @@
         encounters an OpenSSL error code which does not have a reason string.
         """
         lib.ERR_put_error(lib.ERR_LIB_EVP, 0, 1112, b"", 10)
-        exc = self.assertRaises(ValueError, exception_from_error_queue, ValueError)
+        exc = self.assertRaises(
+            ValueError, exception_from_error_queue, ValueError
+        )
         self.assertEqual(exc.args[0][0][2], "")