diff --git a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
index 557aa0d60..5234947fb 100644
--- a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
+++ b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
@@ -219,6 +219,6 @@ public class CallChainTreeNode {
     }
 
     public String getTreeNodeId() {
-        return traceLevelId + "@" + viewPointId;
+        return traceLevelId + "@~" + viewPointId;
     }
 }