diff --git a/doc/alternative-input-quickstart-guide.md b/doc/alternative-input-quickstart-guide.md
index 0e306cfc..dc13a662 100644
--- a/doc/alternative-input-quickstart-guide.md
+++ b/doc/alternative-input-quickstart-guide.md
@@ -62,7 +62,7 @@ this.addChild( screenViewRootNode );
 // pdom - dragging using the keyboard
 const keyboardDragListener = new KeyboardDragListener( {
   positionProperty: widget.positionProperty,
-  dragBounds: dragBoundsProperty.value,
+  dragBoundsProperty: dragBoundsProperty,
   transform: modelViewTransform,
   dragVelocity: 100, // velocity - change in position per second
   shiftDragVelocity: 20 // finer-grained