diff --git a/demos/shapes.html b/demos/shapes.html
index 5448d58fa..2b940e87e 100644
--- a/demos/shapes.html
+++ b/demos/shapes.html
@@ -20,28 +20,6 @@
         var demo = new CANNON.Demo();
         var mass = 1, size = 1;
 
-
-        function createTetra(){
-            var verts = [new CANNON.Vec3(0,0,0),
-                         new CANNON.Vec3(2,0,0),
-                         new CANNON.Vec3(0,2,0),
-                         new CANNON.Vec3(0,0,2)];
-            var offset = -0.35;
-            for(var i=0; i<verts.length; i++){
-                var v = verts[i];
-                v.x += offset;
-                v.y += offset;
-                v.z += offset;
-            }
-            return new CANNON.ConvexPolyhedron(verts,
-                                                [
-                                                    [0,3,2], // -x
-                                                    [0,1,3], // -y
-                                                    [0,2,1], // -z
-                                                    [1,2,3], // +xyz
-                                                ]);
-        }
-
         demo.addScene("all shapes",function(){
             var world = setupWorld(demo);
 
@@ -120,7 +98,12 @@
                 v.y += offset;
                 v.z += offset;
             }
-            var polyhedronShape = createTetra();
+            var polyhedronShape = new CANNON.ConvexPolyhedron(verts, [
+              [0,3,2], // -x
+              [0,1,3], // -y
+              [0,2,1], // -z
+              [1,2,3], // +xyz
+            ]);
             var polyhedronBody = new CANNON.Body({ mass: mass });
             polyhedronBody.addShape(polyhedronShape);
             polyhedronBody.position.set(size*2,-size*2,size+1);