diff --git a/wechat/crypt.py b/wechat/crypt.py
index 283598d..2537498 100644
--- a/wechat/crypt.py
+++ b/wechat/crypt.py
@@ -10,8 +10,9 @@
 import xml.etree.cElementTree as ET
 import sys
 import socket
+from imp import reload
 reload(sys)
-sys.setdefaultencoding('utf-8')
+#sys.setdefaultencoding('utf-8')
 
 WXBizMsgCrypt_OK = 0
 WXBizMsgCrypt_ValidateSignature_Error = -40001