diff --git a/setup.py b/setup.py
index 3d5a5c5..9331942 100644
--- a/setup.py
+++ b/setup.py
@@ -2,10 +2,6 @@
 from glob import glob
 from setuptools import setup, Command, Extension
 
-# Disable M1 builds until we can test.
-if sys.platform == 'darwin':
-    os.environ['_PYTHON_HOST_PLATFORM'] = 'macosx-10.9-x86_64'
-    os.environ['ARCHFLAGS'] = '-arch x86_64'
 
 # Defensive linker flags for Linux:
 if sys.platform.startswith('linux'):