diff --git a/service/family.js b/service/family.js
index 951b89d..2312dcb 100644
--- a/service/family.js
+++ b/service/family.js
@@ -15,7 +15,7 @@ var family = {
             "member_id": req.query.member_id,
             "family_uid": req.query.family_uid
         };
-        let  Qstring =   "SELECT member_id FROM members_family  WHERE UID ='"+data.member_id+"'";
+        let  Qstring =   "SELECT member_id FROM members_family  WHERE uid ='"+data.family_uid+"'";
         logger.info(Qstring);
         db.query(Qstring, function (err, result) {
             try {