diff --git a/api/src/main/java/com/alibaba/nacos/api/config/annotation/NacosConfigurationProperties.java b/api/src/main/java/com/alibaba/nacos/api/config/annotation/NacosConfigurationProperties.java
index 9d8961055..2d2cf6480 100644
--- a/api/src/main/java/com/alibaba/nacos/api/config/annotation/NacosConfigurationProperties.java
+++ b/api/src/main/java/com/alibaba/nacos/api/config/annotation/NacosConfigurationProperties.java
@@ -36,6 +36,13 @@ import static com.alibaba.nacos.api.common.Constants.DEFAULT_GROUP;
@Documented
public @interface NacosConfigurationProperties {
+ /**
+ * config prefix name
+ *
+ * @return default value is ""
+ */
+ String prefix() default "";
+
/**
* Nacos Group ID
*
@@ -51,9 +58,9 @@ public @interface NacosConfigurationProperties {
String dataId();
/**
- * if the config style is yaml
+ * config style
*
- * @return default value is false
+ * @return default value is {@link ConfigType#PROPERTIES}
*/
ConfigType type() default ConfigType.PROPERTIES;