diff --git a/src/ol/interaction/dragboxinteraction.js b/src/ol/interaction/dragboxinteraction.js
index 63a24d3eaf..0e7c4accad 100644
--- a/src/ol/interaction/dragboxinteraction.js
+++ b/src/ol/interaction/dragboxinteraction.js
@@ -109,19 +109,15 @@ goog.inherits(ol.interaction.DragBox, ol.interaction.PointerInteraction);
 
 /**
  * Returns true if the pointer event is generated by a mouse pointer.
- * @param {ol.MapBrowserEvent} mapBrowserEvent
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent
  * @return {boolean}
  */
 ol.interaction.DragBox.prototype.isMousePointer =
     function(mapBrowserEvent) {
-  goog.asserts.assertInstanceof(mapBrowserEvent, ol.MapBrowserPointerEvent);
-  var mapBrowserPointerEvent =
-      /** @type {ol.MapBrowserPointerEvent} */ (mapBrowserEvent);
-
   /* pointerId must be 1 for mouse devices,
    * see: http://www.w3.org/Submission/pointer-events/#pointerevent-interface
    */
-  return mapBrowserPointerEvent.pointerEvent.pointerId == 1;
+  return mapBrowserEvent.pointerEvent.pointerId == 1;
 };
 
 
diff --git a/src/ol/interaction/pointerinteraction.js b/src/ol/interaction/pointerinteraction.js
index 98d95453d1..40afae7a40 100644
--- a/src/ol/interaction/pointerinteraction.js
+++ b/src/ol/interaction/pointerinteraction.js
@@ -5,6 +5,7 @@ goog.require('goog.functions');
 goog.require('goog.object');
 goog.require('ol.MapBrowserEvent');
 goog.require('ol.MapBrowserEvent.EventType');
+goog.require('ol.MapBrowserPointerEvent');
 goog.require('ol.Pixel');
 goog.require('ol.ViewHint');
 goog.require('ol.interaction.Interaction');
@@ -59,7 +60,7 @@ ol.interaction.PointerInteraction.centroid = function(touches) {
 
 
 /**
- * @param {ol.MapBrowserEvent} mapBrowserEvent Event.
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent Event.
  * @return {boolean} Whether the event is a pointerdown, pointerdrag
  *     or pointerup event.
  * @private
@@ -74,7 +75,7 @@ ol.interaction.PointerInteraction.isTouchEvent_ = function(mapBrowserEvent) {
 
 
 /**
- * @param {ol.MapBrowserEvent} mapBrowserEvent Event.
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent Event.
  * @private
  */
 ol.interaction.PointerInteraction.prototype.updateTrackedTouches_ =
@@ -97,7 +98,7 @@ ol.interaction.PointerInteraction.prototype.updateTrackedTouches_ =
 
 
 /**
- * @param {ol.MapBrowserEvent} mapBrowserEvent Event.
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent Event.
  * @protected
  */
 ol.interaction.PointerInteraction.prototype.handlePointerDrag =
@@ -105,7 +106,7 @@ ol.interaction.PointerInteraction.prototype.handlePointerDrag =
 
 
 /**
- * @param {ol.MapBrowserEvent} mapBrowserEvent Event.
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent Event.
  * @protected
  * @return {boolean} Capture dragging.
  */
@@ -114,7 +115,7 @@ ol.interaction.PointerInteraction.prototype.handlePointerUp =
 
 
 /**
- * @param {ol.MapBrowserEvent} mapBrowserEvent Event.
+ * @param {ol.MapBrowserPointerEvent} mapBrowserEvent Event.
  * @protected
  * @return {boolean} Capture dragging.
  */
@@ -127,20 +128,26 @@ ol.interaction.PointerInteraction.prototype.handlePointerDown =
  */
 ol.interaction.PointerInteraction.prototype.handleMapBrowserEvent =
     function(mapBrowserEvent) {
+  goog.asserts.assertInstanceof(mapBrowserEvent, ol.MapBrowserPointerEvent);
+  var mapBrowserPointerEvent =
+      /** @type {ol.MapBrowserPointerEvent} */ (mapBrowserEvent);
+
   var view = mapBrowserEvent.map.getView();
-  this.updateTrackedTouches_(mapBrowserEvent);
+  this.updateTrackedTouches_(mapBrowserPointerEvent);
   if (this.handled_) {
-    if (mapBrowserEvent.type == ol.MapBrowserEvent.EventType.POINTERDRAG) {
+    if (mapBrowserPointerEvent.type ==
+        ol.MapBrowserEvent.EventType.POINTERDRAG) {
       this.handlePointerDrag(mapBrowserEvent);
-    } else if (mapBrowserEvent.type == ol.MapBrowserEvent.EventType.POINTERUP) {
-      this.handled_ = this.handlePointerUp(mapBrowserEvent);
+    } else if (mapBrowserPointerEvent.type ==
+        ol.MapBrowserEvent.EventType.POINTERUP) {
+      this.handled_ = this.handlePointerUp(mapBrowserPointerEvent);
       if (!this.handled_) {
         view.setHint(ol.ViewHint.INTERACTING, -1);
       }
     }
   }
-  if (mapBrowserEvent.type == ol.MapBrowserEvent.EventType.POINTERDOWN) {
-    var handled = this.handlePointerDown(mapBrowserEvent);
+  if (mapBrowserPointerEvent.type == ol.MapBrowserEvent.EventType.POINTERDOWN) {
+    var handled = this.handlePointerDown(mapBrowserPointerEvent);
     if (!this.handled_ && handled) {
       view.setHint(ol.ViewHint.INTERACTING, 1);
     }
diff --git a/src/ol/mapbrowserevent.js b/src/ol/mapbrowserevent.js
index a953498668..5c94b1d975 100644
--- a/src/ol/mapbrowserevent.js
+++ b/src/ol/mapbrowserevent.js
@@ -1,6 +1,7 @@
 goog.provide('ol.MapBrowserEvent');
 goog.provide('ol.MapBrowserEvent.EventType');
 goog.provide('ol.MapBrowserEventHandler');
+goog.provide('ol.MapBrowserPointerEvent');
 
 goog.require('goog.array');
 goog.require('goog.asserts');