diff --git a/examples/js/renderers/CSS3DRenderer.js b/examples/js/renderers/CSS3DRenderer.js
index 70c3b8ff253037bafe15b32d7aa4e106d7e58766..2eef2e0a04c454226a9fc1e77ed766816483bfb8 100644
--- a/examples/js/renderers/CSS3DRenderer.js
+++ b/examples/js/renderers/CSS3DRenderer.js
@@ -212,7 +212,7 @@ THREE.CSS3DRenderer = function () {
 
 	this.render = function ( scene, camera ) {
 
-		var fov = 0.5 / Math.tan( THREE.Math.degToRad( camera.fov * 0.5 ) ) * _height;
+		var fov = 0.5 / Math.tan( THREE.Math.degToRad( camera.getEffectiveFOV() * 0.5 ) ) * _height;
 
 		if ( cache.camera.fov !== fov ) {