diff --git a/src/main/java/com/huobi/utils/WebSocketWatchDog.java b/src/main/java/com/huobi/utils/WebSocketWatchDog.java
index 644875cd..471eb0b2 100644
--- a/src/main/java/com/huobi/utils/WebSocketWatchDog.java
+++ b/src/main/java/com/huobi/utils/WebSocketWatchDog.java
@@ -58,6 +58,6 @@ public static void onConnectionCreated(WebSocketConnection connection) {
   }
 
   public static void onClosedNormally(WebSocketConnection connection) {
-    TIME_HELPER.remove(connection);
+    TIME_HELPER.remove(connection.getConnectionId());
   }
 }