diff --git a/src/turtle/t2d.scad b/src/turtle/t2d.scad
index f264f4e2..fdb1f8a0 100644
--- a/src/turtle/t2d.scad
+++ b/src/turtle/t2d.scad
@@ -1,5 +1,5 @@
 /**
-* turtle2d.scad
+* t2d.scad
 *
 * @copyright Justin Lin, 2019
 * @license https://opensource.org/licenses/lgpl-3.0.html