wx.LANGUAGE_BRETON: 'FR',
     wx.LANGUAGE_BULGARIAN: 'BG',
     wx.LANGUAGE_CATALAN: 'ES',
-    wx.LANGUAGE_CHINESE: 'TW',
+    wx.LANGUAGE_CHINESE: 'CN',
     wx.LANGUAGE_CHINESE_HONGKONG: 'HK',
     wx.LANGUAGE_CHINESE_MACAU: 'MO',
     wx.LANGUAGE_CHINESE_SIMPLIFIED: 'CN',
     wx.LANGUAGE_CHINESE_SINGAPORE: 'SG',
     wx.LANGUAGE_CHINESE_TAIWAN: 'TW',
-    wx.LANGUAGE_CHINESE_TRADITIONAL: 'TW',
+    wx.LANGUAGE_CHINESE_TRADITIONAL: 'CN',
     wx.LANGUAGE_CROATIAN: 'HR',
     wx.LANGUAGE_CZECH: 'CZ',
     wx.LANGUAGE_DANISH: 'DK',