diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index fa3742c684..f6eea86b90 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -496,6 +496,12 @@
  *     function to load a tile given a URL.
  */
 
+/**
+ * @typedef {Object} ol.source.MapQuestOptions
+ * @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional
+ *     function to load a tile given a URL.
+ */
+
 /**
  * @typedef {Object} ol.source.TileDebugOptions
  * @property {ol.Extent|undefined} extent Extent.
diff --git a/src/ol/source/mapquestsource.js b/src/ol/source/mapquestsource.js
index c7b2bce931..fb5b60f5a0 100644
--- a/src/ol/source/mapquestsource.js
+++ b/src/ol/source/mapquestsource.js
@@ -10,8 +10,11 @@ goog.require('ol.source.XYZ');
 /**
  * @constructor
  * @extends {ol.source.XYZ}
+ * @param {ol.source.MapQuestOptions=} opt_options MapQuest options.
  */
-ol.source.MapQuestOSM = function() {
+ol.source.MapQuestOSM = function(opt_options) {
+
+  var options = goog.isDef(opt_options) ? opt_options : {};
 
   var attributions = [
     new ol.Attribution({
@@ -27,6 +30,7 @@ ol.source.MapQuestOSM = function() {
     logo: 'http://developer.mapquest.com/content/osm/mq_logo.png',
     opaque: true,
     maxZoom: 28,
+    tileLoadFunction: options.tileLoadFunction,
     url: 'http://otile{1-4}.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.jpg'
   });
 
@@ -38,8 +42,11 @@ goog.inherits(ol.source.MapQuestOSM, ol.source.XYZ);
 /**
  * @constructor
  * @extends {ol.source.XYZ}
+ * @param {ol.source.MapQuestOptions=} opt_options MapQuest options.
  */
-ol.source.MapQuestOpenAerial = function() {
+ol.source.MapQuestOpenAerial = function(opt_options) {
+
+  var options = goog.isDef(opt_options) ? opt_options : {};
 
   var attributions = [
     new ol.Attribution({
@@ -58,6 +65,7 @@ ol.source.MapQuestOpenAerial = function() {
     logo: 'http://developer.mapquest.com/content/osm/mq_logo.png',
     maxZoom: 18,
     opaque: true,
+    tileLoadFunction: options.tileLoadFunction,
     url: 'http://oatile{1-4}.mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg'
   });