diff --git a/src/ol/control/Navigation.js b/src/ol/control/Navigation.js
index dc391b4210..e87eb7300c 100644
--- a/src/ol/control/Navigation.js
+++ b/src/ol/control/Navigation.js
@@ -42,7 +42,7 @@ ol.control.Navigation.prototype.deactivate = function() {
 };
 
 /**
- * @param {ol.event.DragEvent} evt
+ * @param {Object} evt
  */
 ol.control.Navigation.prototype.moveMap = function(evt) {
     this.getMap().moveByPx(evt.dx, evt.dy);
diff --git a/src/ol/control/Zoom.js b/src/ol/control/Zoom.js
index 86192ef12d..214a255721 100644
--- a/src/ol/control/Zoom.js
+++ b/src/ol/control/Zoom.js
@@ -76,7 +76,7 @@ ol.control.Zoom.prototype.deactivate = function() {
  * @param {Event} evt
  */
 ol.control.Zoom.prototype.handle = function(evt) {
-    var target = /** @type {Node} */ evt.target,
+    var target = /** @type {Node} */ (evt.target),
         handled = false;
     if (goog.dom.getAncestorByClass(target, ol.control.Zoom.RES.IN_CLS)) {
         this.getMap().zoomIn();