diff --git a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
index 62cd02788..2f2173add 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
@@ -402,7 +402,7 @@ public class InstanceController {
             result.put("name", serviceName);
             result.put("cacheMillis", cacheMillis);
             result.put("lastRefTime", System.currentTimeMillis());
-            result.put("checksum", service.getChecksum() + System.currentTimeMillis());
+            result.put("checksum", service.getChecksum());
             result.put("useSpecifiedURL", false);
             result.put("clusters", clusters);
             result.put("env", env);