diff --git a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/ribbon/PolarisRibbonServerListConfiguration.java b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/ribbon/PolarisRibbonServerListConfiguration.java
index 7a86a05c7..f79bd2dba 100644
--- a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/ribbon/PolarisRibbonServerListConfiguration.java
+++ b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/ribbon/PolarisRibbonServerListConfiguration.java
@@ -24,12 +24,14 @@ import com.tencent.cloud.polaris.discovery.PolarisDiscoveryHandler;
 
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
 
 /**
  * Configuration of server list.
  *
  * @author Haotian Zhang, Andrew Shan, Jie Cheng
  */
+@Configuration
 public class PolarisRibbonServerListConfiguration {
 
 	@Bean
diff --git a/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfiguration.java b/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfiguration.java
index 208a1aaa5..3fbc2c76d 100644
--- a/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfiguration.java
+++ b/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfiguration.java
@@ -28,20 +28,22 @@ import com.tencent.cloud.polaris.loadbalancer.PolarisLoadBalancer;
 import com.tencent.polaris.api.core.ConsumerAPI;
 
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
 
 /**
  * Configuration of ribbon client of Polaris.
  *
  * @author Haotian Zhang
  */
+@Configuration
 public class PolarisRibbonClientConfiguration {
 
 	@Bean
 	public ILoadBalancer polarisLoadBalancer(IClientConfig iClientConfig, IRule iRule,
 			IPing iPing, ServerList<Server> serverList,
-			ConsumerAPI consumerapi, PolarisLoadBalancerProperties polarisLoadBalancerProperties) {
+			ConsumerAPI consumerAPI, PolarisLoadBalancerProperties polarisLoadBalancerProperties) {
 		return new PolarisLoadBalancer(iClientConfig, iRule, iPing, serverList,
-				consumerapi, polarisLoadBalancerProperties);
+				consumerAPI, polarisLoadBalancerProperties);
 	}
 
 }
diff --git a/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfigurationTest.java b/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfigurationTest.java
index f7119ff88..d514af6db 100644
--- a/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfigurationTest.java
+++ b/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisRibbonClientConfigurationTest.java
@@ -50,7 +50,6 @@ public class PolarisRibbonClientConfigurationTest {
 
 	@SpringBootApplication
 	static class TestApplication {
-
 	}
 
 }