diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index b1b5807df..120eabdac 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -554,7 +554,7 @@ func (conf *AppConf) Save() {
 	}
 
 	confSaveLock.Lock()
-	confSaveLock.Unlock()
+	defer confSaveLock.Unlock()
 
 	newData, _ := gulu.JSON.MarshalIndentJSON(Conf, "", "  ")
 	confPath := filepath.Join(util.ConfDir, "conf.json")