diff --git a/examples/sierpinski_pyramid.scad b/examples/sierpinski_pyramid.scad
index 24aa84da..009372b4 100644
--- a/examples/sierpinski_pyramid.scad
+++ b/examples/sierpinski_pyramid.scad
@@ -1,4 +1,4 @@
-include <hull_polyline3d.scad>;
+use <hull_polyline3d.scad>;
 
 side_leng = 100;
 min_leng = 5;