diff --git a/logger/rotater/global.go b/logger/rotater/global.go
index 95a4778..d9b6a85 100644
--- a/logger/rotater/global.go
+++ b/logger/rotater/global.go
@@ -5,6 +5,7 @@ import (
 	"path"
 	"log"
 	"amuz.es/src/infra/goutils/logger"
+	"github.com/lestrrat-go/file-rotatelogs"
 )
 
 var loggers RotateSyncerSet
@@ -21,7 +22,8 @@ func NewLogWriter(FileName string, logDir string, options ...Option) (logger.Rot
 			logpath = path.Join(logDir, FileName)
 		}
 		log.Println(" Attention!! log writes to ", logpath)
-		if logWriter, err := NewRotater(logpath, options...); err != nil {
+		options=append(options,rotatelogs.WithLinkName(logpath))
+		if logWriter, err := NewRotater(logpath+".%Y%M%D", options...); err != nil {
 			return nil, err
 		} else {
 			loggers.Store(logWriter)