diff --git a/access_token.go b/access_token.go
index 65f8101..60a6ebc 100644
--- a/access_token.go
+++ b/access_token.go
@@ -41,7 +41,7 @@ func GetAccessToken(appid, secret string) (wx_access_token_res, error) {
 /**
  *  从微信api取access_token
  */
-func getStableAccessToken(appid, secret string) (wx_access_token_res, error) {
+func GetStableAccessToken(appid, secret string) (wx_access_token_res, error) {
 	var err error
 
 	var data wx_access_token_res