diff --git a/js/energy-skate-park/common/view/MeasuringTapePanel.js b/js/energy-skate-park/common/view/MeasuringTapePanel.js
index e39e7cc0..24411120 100644
--- a/js/energy-skate-park/common/view/MeasuringTapePanel.js
+++ b/js/energy-skate-park/common/view/MeasuringTapePanel.js
@@ -31,7 +31,7 @@ define( require => {
         fill: EnergySkateParkColorScheme.panelFill
       }, options );
 
-      let measuringTapeIcon = MeasuringTapeNode.createIcon();
+      const measuringTapeIcon = MeasuringTapeNode.createIcon();
 
       // set scale of measuring tape icon, but don't pas to createIcon because it makes the icon generated with
       // Node.toImage look too aliased, see https://github.com/phetsims/energy-skate-park/issues/27
diff --git a/js/energy-skate-park/measure/view/SkaterPathSensorNode.js b/js/energy-skate-park/measure/view/SkaterPathSensorNode.js
index 99e4d843..fad4813a 100644
--- a/js/energy-skate-park/measure/view/SkaterPathSensorNode.js
+++ b/js/energy-skate-park/measure/view/SkaterPathSensorNode.js
@@ -183,8 +183,8 @@ define( require => {
       this.probeNode.addInputListener( new DragListener( {
         transform: modelViewTransform,
         drag: ( event, listener ) => {
-          let pMouse = this.globalToParentPoint( event.pointer.point );
-          let modelMouse = modelViewTransform.viewToModelPosition( pMouse );
+          const pMouse = this.globalToParentPoint( event.pointer.point );
+          const modelMouse = modelViewTransform.viewToModelPosition( pMouse );
           sensorPositionProperty.set( modelMouse );
         }
       } ) );