diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index 6d8a2ee656..31d3ac326c 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -209,6 +209,7 @@
 
 /**
  * @typedef {Object} ol.interaction.KeyboardZoomOptions
+ * @property {ol.interaction.ConditionType|undefined} condition Condition.
  * @property {number|undefined} delta Delta.
  */
 
diff --git a/src/ol/interaction/interactiondefaults.js b/src/ol/interaction/interactiondefaults.js
index 52a2acbf38..1e34390262 100644
--- a/src/ol/interaction/interactiondefaults.js
+++ b/src/ol/interaction/interactiondefaults.js
@@ -73,8 +73,9 @@ ol.interaction.defaults = function(opt_options, opt_interactions) {
       options.keyboard : true;
   if (keyboard) {
     interactions.push(new ol.interaction.KeyboardPan());
-    interactions.push(new ol.interaction.KeyboardZoom(
-        ol.interaction.condition.noModifierKeys));
+    interactions.push(new ol.interaction.KeyboardZoom({
+      delta: options.zoomDelta
+    }));
   }
 
   var mouseWheelZoom = goog.isDef(options.mouseWheelZoom) ?
diff --git a/src/ol/interaction/keyboardzoominteraction.js b/src/ol/interaction/keyboardzoominteraction.js
index c98e6ed516..8bd6cc8748 100644
--- a/src/ol/interaction/keyboardzoominteraction.js
+++ b/src/ol/interaction/keyboardzoominteraction.js
@@ -6,6 +6,7 @@ goog.require('goog.asserts');
 goog.require('goog.events.KeyHandler.EventType');
 goog.require('ol.interaction.ConditionType');
 goog.require('ol.interaction.Interaction');
+goog.require('ol.interaction.condition');
 
 
 /**
@@ -17,11 +18,10 @@ ol.interaction.KEYBOARD_ZOOM_DURATION = 100;
 
 /**
  * @constructor
- * @param {ol.interaction.ConditionType} condition Condition.
  * @param {ol.interaction.KeyboardZoomOptions=} opt_options Options.
  * @extends {ol.interaction.Interaction}
  */
-ol.interaction.KeyboardZoom = function(condition, opt_options) {
+ol.interaction.KeyboardZoom = function(opt_options) {
 
   goog.base(this);
 
@@ -31,7 +31,8 @@ ol.interaction.KeyboardZoom = function(condition, opt_options) {
    * @private
    * @type {ol.interaction.ConditionType}
    */
-  this.condition_ = condition;
+  this.condition_ = goog.isDef(options.condition) ?
+      options.condition : ol.interaction.condition.noModifierKeys;
 
   /**
    * @private