diff --git a/unipay/init.py b/unipay/init.py
index 3da379e..64179b5 100644
--- a/unipay/init.py
+++ b/unipay/init.py
@@ -29,8 +29,8 @@ CONF = {
 	},
 	"alipay": {
 		"app_id": os.getenv("ALIPAY_APPID",""),
-		"app_private_key_pem": open(os.getenv("ALIPAY_PRIV","./alipay_priv.pem"),"rb").read(),
-		"alipay_public_key_pem": open(os.getenv("ALIPAY_PUB","./alipay_pub.pem"),"rb").read()
+		"app_private_key_pem": os.getenv("ALIPAY_PRIV","./alipay_priv.pem"),
+		"alipay_public_key_pem": os.getenv("ALIPAY_PUB","")
 	},
 	"stripe": {
 		"api_key": os.getenv("STRIPE_KEY","")