diff --git a/examples/tiles/2_corner_wang_tiles_basic.scad b/examples/tiles/2_corner_wang_tiles_basic.scad
index 4b667547..de65ec0a 100644
--- a/examples/tiles/2_corner_wang_tiles_basic.scad
+++ b/examples/tiles/2_corner_wang_tiles_basic.scad
@@ -1,5 +1,6 @@
 use <experimental/tile_w2c.scad>;
 use <arc.scad>;
+use <experimental/choose_children.scad>;
 
 size = [15, 10];
 tile_width = 10;