diff --git a/setup.py b/setup.py
index 95ed647c7..5aefc763e 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,10 @@
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
 
-VERSION_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "retro/VERSION.txt")
+VERSION_PATH = os.path.join(
+    os.path.dirname(os.path.abspath(__file__)),
+    "retro/VERSION.txt",
+)
 
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 README = open(os.path.join(SCRIPT_DIR, "README.md")).read()