diff --git a/setup.py b/setup.py
index 87f4ad2..714a7b1 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 def get_version():
     version_file = os.path.join(current_dir, name, "__init__.py")
     with io.open(version_file, encoding="utf-8") as f:
-        return re.search(r'^__version__ = [\'"]([^\'"]*)[\'"]', f.read(), re.M).group(1)
+        return re.search(r'^__version__ = [\'"]([^\'"]*)[\'"]', f.read(), re.M)[1]
 
 
 # What packages are required for this module to be executed?