diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-multiprotocol/src/main/resources/spring/configcenter-provider.xml b/dubbo-samples-configcenter/dubbo-samples-configcenter-multiprotocol/src/main/resources/spring/configcenter-provider.xml
index c660b45..deabb92 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-multiprotocol/src/main/resources/spring/configcenter-provider.xml
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-multiprotocol/src/main/resources/spring/configcenter-provider.xml
@@ -28,11 +28,11 @@
     <dubbo:config-center address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
     <bean id="demoService" class="org.apache.dubbo.samples.configcenter.impl.DemoServiceImpl"/>
-    <dubbo:service id="dubbo1DemoService" protocol="dubbo1"
+    <dubbo:service protocol="dubbo1"
                    interface="org.apache.dubbo.samples.configcenter.api.DemoService"
                    ref="demoService"/>
-    <dubbo:service id="dubbo2DemoService" protocol="dubbo2"
+    <dubbo:service protocol="dubbo2"
                    interface="org.apache.dubbo.samples.configcenter.api.DemoService"
-                   ref="demoService"/>
+                   ref="demoService" group="groupA"/>
 
 </beans>