diff --git a/weixin/base.go b/weixin/base.go
index 1da7e23..2b561cc 100644
--- a/weixin/base.go
+++ b/weixin/base.go
@@ -15,6 +15,7 @@ const (
 	accessTokenUrl       string = "https://api.weixin.qq.com/cgi-bin/token"
 	userPhoneNumberUrl   string = "https://api.weixin.qq.com/wxa/business/getuserphonenumber"
 	getWxACodeUnLimitUrl string = "https://api.weixin.qq.com/wxa/getwxacodeunlimit"
+	getWxScheme          string = "https://api.weixin.qq.com/wxa/generatescheme"
 	code2UserinfoUrl     string = "https://api.weixin.qq.com/sns/userinfo"
 	oaQrCodeCreateUrl    string = "https://api.weixin.qq.com/cgi-bin/qrcode/create"
 	userInfoByOpenid     string = "https://api.weixin.qq.com/cgi-bin/user/info"
diff --git a/weixin/mp_sdk.go b/weixin/mp_sdk.go
index f8fb5f8..19fc30f 100644
--- a/weixin/mp_sdk.go
+++ b/weixin/mp_sdk.go
@@ -119,8 +119,8 @@ func (o *MpSdk) GetScheme(params map[string]interface{}) (string, error) {
 		jump_wxa["env_version"] = cast.ToString(params["env_version"])
 	}
 
-	jump_wxa["path"] = params["path"]
-	jump_wxa["query"] = params["query"]
+	jump_wxa["path"] = cast.ToString(params["path"])
+	jump_wxa["query"] = cast.ToString(params["query"])
 	newParams["jump_wxa"] = jump_wxa
 
 	newParams["expire_interval"] = 30