diff --git a/.github/actions/scenarios/xds-service/xds-service-discovery/sermant-only/action.yml b/.github/actions/scenarios/xds-service/xds-service-discovery/sermant-only/action.yml
index 63cbe8648d..44d92d2e46 100644
--- a/.github/actions/scenarios/xds-service/xds-service-discovery/sermant-only/action.yml
+++ b/.github/actions/scenarios/xds-service/xds-service-discovery/sermant-only/action.yml
@@ -22,7 +22,8 @@ runs:
       run: |
         kubectl wait --for=condition=ready pod -l app=spring-client --timeout=10s
         kubectl wait --for=condition=ready pod -l app=spring-server --timeout=10s
-        kubectl port-forward svc/spring-client 8080:8080 &
+        sleep 5s
+        nohup kubectl port-forward svc/spring-client 8080:8080 &
         sleep 2s
         bash ./sermant-integration-tests/scripts/checkService.sh http://127.0.0.1:8080/checkStatus 150
         kubectl port-forward svc/spring-server 8081:8081 &