1 files changed, 1 insertions, 1 deletions
diff --git a/file.go b/file.go
index 0a7a3e5..ef952cb 100644
--- a/file.go
+++ b/file.go
@@ -72,7 +72,7 @@ func (f *File) Name() string {
 
 func (f *File) readdir(count int, onlyDir bool) ([]os.FileInfo, error) {
 	if !isDirPath(f.key) {
-		return nil, ErrUnsupported
+		return nil, ErrNotDirectory
 	}
 	if count == 0 {
 		return []os.FileInfo{}, nil