diff --git a/spacy/tests/tokenizer/conftest.py b/spacy/tests/tokenizer/conftest.py
index 8d842cd6d..3a3516c41 100644
--- a/spacy/tests/tokenizer/conftest.py
+++ b/spacy/tests/tokenizer/conftest.py
@@ -2,6 +2,7 @@
 from __future__ import unicode_literals
 
 import pytest
+
 from ...en import English
 
 
diff --git a/spacy/tests/tokenizer/test_indices.py b/spacy/tests/tokenizer/test_indices.py
index 5a0dea627..0ed6ca4dc 100644
--- a/spacy/tests/tokenizer/test_indices.py
+++ b/spacy/tests/tokenizer/test_indices.py
@@ -1,13 +1,14 @@
 # coding: utf-8
 """Test that token.idx correctly computes index into the original string."""
 
+
 from __future__ import unicode_literals
 
 import pytest
 
 
 def test_simple_punct(en_tokenizer):
-    text = 'to walk, do foo'
+    text = "to walk, do foo"
     tokens = en_tokenizer(text)
     assert tokens[0].idx == 0
     assert tokens[1].idx == 3
@@ -17,7 +18,7 @@ def test_simple_punct(en_tokenizer):
 
 
 def test_complex_punct(en_tokenizer):
-    text = 'Tom (D., Ill.)!'
+    text = "Tom (D., Ill.)!"
     tokens = en_tokenizer(text)
     assert tokens[0].idx == 0
     assert len(tokens[0]) == 3