diff --git a/readability/encoding.py b/readability/encoding.py
index 6a3e9cc..d79d5aa 100644
--- a/readability/encoding.py
+++ b/readability/encoding.py
@@ -13,7 +13,10 @@ CHARSETS = {
     'big5': 'big5hkscs',
     'gb2312': 'gb18030',
     'ascii': 'utf-8',
-    'MacCyrillic': 'cp1251',
+    'maccyrillic': 'cp1251',
+    'win1251': 'cp1251',
+    'win-1251': 'cp1251',
+    'windows-1251': 'cp1251',
 }
 
 
diff --git a/setup.py b/setup.py
index 3ee0cca..1951325 100755
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ if sys.platform == 'darwin':
 
 setup(
     name="readability-lxml",
-    version="0.5.0.2",
+    version="0.5.0.3",
     author="Yuri Baburov",
     author_email="burchik@gmail.com",
     description="fast python port of arc90's readability tool",