diff --git a/examples/webgl_custom_attributes_points2.html b/examples/webgl_custom_attributes_points2.html
index 62079acccb26699aaeb202966c3a778dd417aa97..757134747a0ec02dc7dd38ef43c07f237da97fb5 100644
--- a/examples/webgl_custom_attributes_points2.html
+++ b/examples/webgl_custom_attributes_points2.html
@@ -149,7 +149,6 @@
 			var material = new THREE.ShaderMaterial( {
 
 				uniforms: {
-					amplitude: { value: 1.0 },
 					color: { value: new THREE.Color( 0xffffff ) },
 					texture: { value: texture }
 				},