diff --git a/index_meta.go b/index_meta.go
index 8789470a..6d03c760 100644
--- a/index_meta.go
+++ b/index_meta.go
@@ -56,7 +56,7 @@ func openIndexMeta(path string) (*indexMeta, error) {
 func (i *indexMeta) Save(path string) (err error) {
 	indexMetaPath := indexMetaPath(path)
 	// ensure any necessary parent directories exist
-	err = os.Mkdir(path, 0700)
+	err = os.MkdirAll(path, 0700)
 	if err != nil {
 		if os.IsExist(err) {
 			return ErrorIndexPathExists