diff --git a/examples/js/controls/TrackballControls.js b/examples/js/controls/TrackballControls.js
index 5d4582910cf2a2c846ea0904205c70ff8d4b1665..79168f89da6ce1b4db2d174c9c3206a84a3b799f 100644
--- a/examples/js/controls/TrackballControls.js
+++ b/examples/js/controls/TrackballControls.js
@@ -469,6 +469,8 @@ THREE.TrackballControls = function ( object, domElement ) {
 	function mousewheel( event ) {
 
 		if ( _this.enabled === false ) return;
+		
+		if ( _this.noZoom === true ) return;
 
 		event.preventDefault();
 		event.stopPropagation();