diff --git a/setup.py b/setup.py
index ec6b47b1c..233811192 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@ from pybind11.setup_helpers import ParallelCompile
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
 
-ParallelCompile("MAX_CONCURRENCY", default=0).install()
+ParallelCompile("MAX_CONCURRENCY").install()
 
 
 def get_version() -> str:
@@ -1051,12 +1051,12 @@ ext_modules = [
     Extension("PIL._imagingmorph", ["src/_imagingmorph.c"]),
 ]
 
+
 # parse configuration from _custom_build/backend.py
 while sys.argv[-1].startswith("--pillow-configuration="):
     _, key, value = sys.argv.pop().split("=", 2)
     configuration.setdefault(key, []).append(value)
 
-
 try:
     setup(
         cmdclass={"build_ext": pil_build_ext},