diff --git a/examples/maze/heart_maze.scad b/examples/maze/heart_maze.scad
index 78c2a972..27d75149 100644
--- a/examples/maze/heart_maze.scad
+++ b/examples/maze/heart_maze.scad
@@ -102,7 +102,7 @@ maze = go_maze(1, 1,
 );
 
 intersection() {
-	*union() {
+	union() {
 		ellipse_extrude(height_of_heart / 2) 
 			heart(radius_of_heart + wall_thickness , tip_r_of_heart);