diff --git a/registry/base_registry.go b/registry/base_registry.go
index 8c62062cd053f824c0880c33e0a64eb421d4a49f..39186eef0a63d3c989078ce56b8b50cd85f5abcb 100644
--- a/registry/base_registry.go
+++ b/registry/base_registry.go
@@ -411,7 +411,7 @@ func (r *BaseRegistry) Subscribe(url *common.URL, notifyListener NotifyListener)
 	}
 }
 
-// UnSubscribe :UnSubscribeURL
+// UnSubscribe URL
 func (r *BaseRegistry) UnSubscribe(url *common.URL, notifyListener NotifyListener) error {
 	if !r.IsAvailable() {
 		logger.Warnf("event listener game over.")