diff --git a/baidu/lbs.go b/baidu/lbs.go
index 45cb681..9cbad64 100644
--- a/baidu/lbs.go
+++ b/baidu/lbs.go
@@ -25,7 +25,7 @@ func NewLbs(ak string) *Lbs {
 }
 
 func (l *Lbs) GetAddress(lng, lat float64) (string, error) {
-	reqUrl := fmt.Sprintf("https://api.map.baidu.com/reverse_geocoding/v3/?ak=s&output=json&coordtype=wgs84&location=%f,%f", l.ak, lat, lng)
+	reqUrl := fmt.Sprintf("https://api.map.baidu.com/reverse_geocoding/v3/?ak=%s&output=json&coordtype=wgs84&location=%f,%f", l.ak, lat, lng)
 	rspBody, err := goutil.HttpGet(reqUrl, nil)
 	if err != nil {
 		return "", err