diff --git a/setup.py b/setup.py
index db202df..566d844 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ import setuptools
 # setuptools if some other modules registered functions in `atexit`.
 # solution from: http://bugs.python.org/issue15881#msg170215
 try:
-    import multiprocessing  # noqa: F401
+    import multiprocessing  # noqa
 except ImportError:
     pass