diff --git a/setup.py b/setup.py
index 21f55c0..efacf72 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 except ImportError:
     from distutils.core import setup
 
-with open("README.rst", "r", encoding="utf-8") as fh:
+with open("README.rst", "r") as fh:
     long_description = fh.read()
 
 packages = [