diff --git a/js/common/view/WavelengthControl.js b/js/common/view/WavelengthControl.js
index 23093f5a..5037400f 100644
--- a/js/common/view/WavelengthControl.js
+++ b/js/common/view/WavelengthControl.js
@@ -50,8 +50,7 @@ define( function( require ) {
       trackHeight: 20,
       tweakersVisible: false,
       valueVisible: false,
-      thumbTouchAreaYDilation: 4,
-      pointerAreasOverTrack: true
+      thumbTouchAreaYDilation: 4
     } );
 
     var formattedString = StringUtils.format( wavelengthPatternString, Util.roundSymmetric( wavelengthPropertyNM.value ) );