diff --git a/weed/s3api/filer_util_tags.go b/weed/s3api/filer_util_tags.go
index bdc8f31da..3d4da7825 100644
--- a/weed/s3api/filer_util_tags.go
+++ b/weed/s3api/filer_util_tags.go
@@ -7,7 +7,7 @@ import (
 )
 
 const (
-	S3TAG_PREFIX = "x-amz-tagging-"
+	S3TAG_PREFIX = "s3-"
 )
 
 func (s3a *S3ApiServer) getTags(parentDirectoryPath string, entryName string) (tags map[string]string, err error) {