diff --git a/joylive-demo/joylive-demo-grpc/joylive-demo-grpc-provider/src/main/java/com/jd/live/agent/demo/grpc/provider/service/UserServiceGrpcImpl.java b/joylive-demo/joylive-demo-grpc/joylive-demo-grpc-provider/src/main/java/com/jd/live/agent/demo/grpc/provider/service/UserServiceGrpcImpl.java
index ec7a392b..9faa312c 100644
--- a/joylive-demo/joylive-demo-grpc/joylive-demo-grpc-provider/src/main/java/com/jd/live/agent/demo/grpc/provider/service/UserServiceGrpcImpl.java
+++ b/joylive-demo/joylive-demo-grpc/joylive-demo-grpc-provider/src/main/java/com/jd/live/agent/demo/grpc/provider/service/UserServiceGrpcImpl.java
@@ -26,7 +26,7 @@ public class UserServiceGrpcImpl extends UserServiceGrpc.UserServiceImplBase {
 
     @Override
     public void get(UserGetRequest request, StreamObserver<UserGetResponse> responseObserver) {
-        if (ThreadLocalRandom.current().nextInt(5) == 0) {
+        if (request.getId() < 0 && ThreadLocalRandom.current().nextInt(5) == 0) {
             responseObserver.onError(new RuntimeException("error"));
             return;
         }