diff --git a/package.json b/package.json
index 8e673837c3..d19dd2dfb2 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "nomnom": "1.8.1",
     "pbf": "2.0.1",
     "pixelworks": "1.1.0",
-    "rbush": "1.4.3",
+    "rbush": "2.0.1",
     "temp": "0.8.3",
     "vector-tile": "1.2.1",
     "walk": "2.3.9"
@@ -86,7 +86,10 @@
     }
   },
   "ext": [
-    "rbush",
+    {
+      "module": "rbush",
+      "browserify": true
+    },
     {
       "module": "pbf",
       "browserify": true
diff --git a/src/ol/structs/rbush.js b/src/ol/structs/rbush.js
index 2d77e5f3de..df435ad6ef 100644
--- a/src/ol/structs/rbush.js
+++ b/src/ol/structs/rbush.js
@@ -26,7 +26,7 @@ ol.structs.RBush = function(opt_maxEntries) {
    * A mapping between the objects added to this rbush wrapper
    * and the objects that are actually added to the internal rbush.
    * @private
-   * @type {Object.<number, Object>}
+   * @type {Object.<number, ol.RBushEntry>}
    */
   this.items_ = {};
 
@@ -49,13 +49,15 @@ ol.structs.RBush.prototype.insert = function(extent, value) {
   if (goog.DEBUG && this.readers_) {
     throw new Error('Can not insert value while reading');
   }
-  var item = [
-    extent[0],
-    extent[1],
-    extent[2],
-    extent[3],
-    value
-  ];
+  /** @type {ol.RBushEntry} */
+  var item = {
+    minX: extent[0],
+    minY: extent[1],
+    maxX: extent[2],
+    maxY: extent[3],
+    value: value
+  };
+
   this.rbush_.insert(item);
   // remember the object that was added to the internal rbush
   goog.asserts.assert(!(goog.getUid(value) in this.items_),
@@ -82,13 +84,14 @@ ol.structs.RBush.prototype.load = function(extents, values) {
     var extent = extents[i];
     var value = values[i];
 
-    var item = [
-      extent[0],
-      extent[1],
-      extent[2],
-      extent[3],
-      value
-    ];
+    /** @type {ol.RBushEntry} */
+    var item = {
+      minX: extent[0],
+      minY: extent[1],
+      maxX: extent[2],
+      maxY: extent[3],
+      value: value
+    };
     items[i] = item;
     goog.asserts.assert(!(goog.getUid(value) in this.items_),
         'uid (%s) of value (%s) already exists', goog.getUid(value), value);
@@ -130,7 +133,8 @@ ol.structs.RBush.prototype.update = function(extent, value) {
       'uid (%s) of value (%s) does not exist', uid, value);
 
   var item = this.items_[uid];
-  if (!ol.extent.equals(item.slice(0, 4), extent)) {
+  var bbox = [item.minX, item.minY, item.maxX, item.maxY];
+  if (!ol.extent.equals(bbox, extent)) {
     if (goog.DEBUG && this.readers_) {
       throw new Error('Can not update extent while reading');
     }
@@ -147,7 +151,7 @@ ol.structs.RBush.prototype.update = function(extent, value) {
 ol.structs.RBush.prototype.getAll = function() {
   var items = this.rbush_.all();
   return items.map(function(item) {
-    return item[4];
+    return item.value;
   });
 };
 
@@ -158,9 +162,16 @@ ol.structs.RBush.prototype.getAll = function() {
  * @return {Array.<T>} All in extent.
  */
 ol.structs.RBush.prototype.getInExtent = function(extent) {
-  var items = this.rbush_.search(extent);
+  /** @type {ol.RBushEntry} */
+  var bbox = {
+    minX: extent[0],
+    minY: extent[1],
+    maxX: extent[2],
+    maxY: extent[3]
+  };
+  var items = this.rbush_.search(bbox);
   return items.map(function(item) {
-    return item[4];
+    return item.value;
   });
 };
 
@@ -253,5 +264,6 @@ ol.structs.RBush.prototype.clear = function() {
  */
 ol.structs.RBush.prototype.getExtent = function(opt_extent) {
   // FIXME add getExtent() to rbush
-  return this.rbush_.data.bbox;
+  var data = this.rbush_.data;
+  return [data.minX, data.minY, data.maxX, data.maxY];
 };
diff --git a/src/ol/typedefs.js b/src/ol/typedefs.js
index ffe8677a77..c9a59f1eab 100644
--- a/src/ol/typedefs.js
+++ b/src/ol/typedefs.js
@@ -686,3 +686,10 @@ ol.XmlParser;
  * @typedef {function(Node, *, Array.<*>)}
  */
 ol.XmlSerializer;
+
+
+/**
+ * @typedef {{minX: number, minY: number, maxX: number, maxY: number,
+ *            value: (Object|undefined)}}
+ */
+ol.RBushEntry;
diff --git a/test/spec/ol/structs/rbush.test.js b/test/spec/ol/structs/rbush.test.js
index 44117fb360..d3d6c029f8 100644
--- a/test/spec/ol/structs/rbush.test.js
+++ b/test/spec/ol/structs/rbush.test.js
@@ -362,6 +362,16 @@ describe('ol.structs.RBush', function() {
 
   });
 
+  describe('#getExtent', function() {
+
+    it('gets the extent', function() {
+      var obj = {};
+      rBush.insert([0, 0, 1, 1], obj);
+      expect(rBush.getExtent()).to.eql([0, 0, 1, 1]);
+    });
+
+  });
+
 });
 
 goog.require('ol.structs.RBush');