diff --git a/src/ol/renderer/canvas/VectorLayer.js b/src/ol/renderer/canvas/VectorLayer.js
index bd3af95e42..da780638ff 100644
--- a/src/ol/renderer/canvas/VectorLayer.js
+++ b/src/ol/renderer/canvas/VectorLayer.js
@@ -29,7 +29,7 @@ const CanvasVectorLayerRenderer = function(vectorLayer) {
    * Declutter tree.
    * @private
    */
-  this.declutterTree_ = vectorLayer.getDeclutter() ? rbush(9) : null;
+  this.declutterTree_ = vectorLayer.getDeclutter() ? rbush(9, undefined) : null;
 
   /**
    * @private
diff --git a/src/ol/renderer/canvas/VectorTileLayer.js b/src/ol/renderer/canvas/VectorTileLayer.js
index 9d903f45b7..e4a7035691 100644
--- a/src/ol/renderer/canvas/VectorTileLayer.js
+++ b/src/ol/renderer/canvas/VectorTileLayer.js
@@ -66,7 +66,7 @@ const CanvasVectorTileLayerRenderer = function(layer) {
    * Declutter tree.
    * @private
    */
-  this.declutterTree_ = layer.getDeclutter() ? rbush(9) : null;
+  this.declutterTree_ = layer.getDeclutter() ? rbush(9, undefined) : null;
 
   /**
    * @private
diff --git a/src/ol/structs/RBush.js b/src/ol/structs/RBush.js
index ae57c7b486..dceecb0712 100644
--- a/src/ol/structs/RBush.js
+++ b/src/ol/structs/RBush.js
@@ -29,7 +29,7 @@ const RBush = function(opt_maxEntries) {
   /**
    * @private
    */
-  this.rbush_ = rbush(opt_maxEntries);
+  this.rbush_ = rbush(opt_maxEntries, undefined);
 
   /**
    * A mapping between the objects added to this rbush wrapper