diff --git a/BitgetApi/WebService/WebConnection.cs b/BitgetApi/WebService/WebConnection.cs
index e7796de..0dbb0cd 100644
--- a/BitgetApi/WebService/WebConnection.cs
+++ b/BitgetApi/WebService/WebConnection.cs
@@ -1168,6 +1168,7 @@ namespace BitgetAPI.WebService
                                             else
                                             {
                                                 candleData.WebSocketUpdate = true;
+                                                lastCandleData.Close = candleData.Open;
                                                 var dt = candleData.Argument;
                                                 dt = dt.AddSeconds(dt.Second * -1);
                                                 dt = dt.AddMilliseconds(dt.Millisecond * -1);