diff --git a/internal/nametransform/names.go b/internal/nametransform/names.go
index 0488d13..4d56d71 100644
--- a/internal/nametransform/names.go
+++ b/internal/nametransform/names.go
@@ -168,6 +168,8 @@ func Dir(path string) string {
 	return d
 }
 
+// GetLongNameMax will return curent `longNameMax`. File name longer than
+// this should be hashed.
 func (n *NameTransform) GetLongNameMax() int {
 	return n.longNameMax
 }
\ No newline at end of file