--- a/black.toml	Mon Apr 13 16:30:13 2020 +0300
+++ b/black.toml	Thu Apr 16 22:51:09 2020 +0530
@@ -9,7 +9,6 @@
 | \.mypy_cache/
 | \.venv/
 | mercurial/thirdparty/
-| contrib/python-zstandard/
 '''
 skip-string-normalization = true
 quiet = true