diff --git a/registry/zookeeper/listener.go b/registry/zookeeper/listener.go
index d2adc44d39533d3f93fc4c2667f0213825261e09..6bb8a932dbdf8326112f76a99f5168a1f3543f8b 100644
--- a/registry/zookeeper/listener.go
+++ b/registry/zookeeper/listener.go
@@ -81,7 +81,7 @@ func (l *RegistryDataListener) DataChange(eventType remoting.Event) bool {
 	return false
 }
 
-func (l *RegistryDataListener) Close(){
+func (l *RegistryDataListener) Close() {
 	for _, listener := range l.subscribed {
 		listener.(*RegistryConfigurationListener).Close()
 	}