diff --git a/B3WeChat/Rpcs/ClientRpc.cs b/B3WeChat/Rpcs/ClientRpc.cs
index eee813b..a2c32ef 100644
--- a/B3WeChat/Rpcs/ClientRpc.cs
+++ b/B3WeChat/Rpcs/ClientRpc.cs
@@ -49,10 +49,10 @@ namespace BWP.B3WeChat.Rpcs
     static string GetOpenId(string username)
     {
       string customer = GetDeviceNumber();
-      var query = new DQueryDom(new JoinAlias(typeof(QRCode)));
-      query.Columns.Add(DQSelectColumn.Field("OppenId"));
-      query.Where.Conditions.Add(DQCondition.EQ("Customer", customer));
-      query.Where.Conditions.Add(DQCondition.EQ("UserId", username));
+      var query = new DQueryDom(new JoinAlias(typeof(CustomerUser)));
+      query.Columns.Add(DQSelectColumn.Field("OpenID"));
+      query.Where.Conditions.Add(DQCondition.EQ("CustomerCode", customer));
+      query.Where.Conditions.Add(DQCondition.EQ("CustomerUsername", username));
       query.Range = SelectRange.Top(1);
       var OppenId = query.EExecuteScalar<string>();
       if (string.IsNullOrEmpty(OppenId))