diff --git a/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistration.java b/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistration.java
index d4e7903da..b317ffe3a 100644
--- a/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistration.java
+++ b/spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistration.java
@@ -31,6 +31,7 @@ import org.springframework.util.StringUtils;
 
 import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
 import com.alibaba.nacos.api.naming.NamingService;
+import com.alibaba.nacos.api.naming.PreservedMetadataKeys;
 
 /**
  * @author xiaojing