diff --git a/transformations.scad b/transformations.scad
index b180f58..1522ea7 100644
--- a/transformations.scad
+++ b/transformations.scad
@@ -1,3 +1,6 @@
-module scale(v, reference=[0, 0, 0]) {
+// License: GNU LGPL 2.1 or later.
+// © 2010 by Elmo Mäntynen
+
+module local_scale(v, reference=[0, 0, 0]) {
     translate(-reference) scale(v) translate(reference) child(0);
 }