diff --git a/js/energy-skate-park/measure/model/MeasureModel.js b/js/energy-skate-park/measure/model/MeasureModel.js
index 949e7dfd..b01a2d8a 100644
--- a/js/energy-skate-park/measure/model/MeasureModel.js
+++ b/js/energy-skate-park/measure/model/MeasureModel.js
@@ -51,7 +51,8 @@ define( function( require ) {
       this.skater.directionProperty,
       this.skater.trackProperty,
       this.skater.referenceHeightProperty,
-      this.sampleSkaterProperty
+      this.sampleSkaterProperty,
+      this.skater.draggingProperty
     ];
 
     var self = this;