diff --git a/modules/storage/obs.go b/modules/storage/obs.go
index 400c77b86..8c6ccfa06 100755
--- a/modules/storage/obs.go
+++ b/modules/storage/obs.go
@@ -282,6 +282,9 @@ func GetOneLevelAllObjectUnderDir(bucket string, prefixRootPath string, relative
 	input := &obs.ListObjectsInput{}
 	input.Bucket = bucket
 	input.Prefix = prefixRootPath + relativePath
+	if !strings.HasSuffix(input.Prefix, "/") {
+		input.Prefix += "/"
+	}
 	output, err := ObsCli.ListObjects(input)
 	fileInfos := make([]FileInfo, 0)
 	prefixLen := len(input.Prefix)