diff --git a/examples/geolocation.js b/examples/geolocation.js
index 36c18f4e95..c70626a4ff 100644
--- a/examples/geolocation.js
+++ b/examples/geolocation.js
@@ -5,7 +5,6 @@
 goog.require('ol.Geolocation');
 goog.require('ol.Map');
 goog.require('ol.Overlay');
-goog.require('ol.OverlayPositioning');
 goog.require('ol.RendererHints');
 goog.require('ol.View2D');
 goog.require('ol.dom.Input');
@@ -45,7 +44,7 @@ geolocation.on('propertychange', function() {
 
 var marker = new ol.Overlay({
   element: /** @type {Element} */ ($('<i/>').addClass('icon-flag').get(0)),
-  positioning: ol.OverlayPositioning.BOTTOM_LEFT,
+  positioning: 'bottom-left',
   stopEvent: false
 });
 map.addOverlay(marker);
diff --git a/examples/icon.js b/examples/icon.js
index afe166d2ff..8a70c7a9b7 100644
--- a/examples/icon.js
+++ b/examples/icon.js
@@ -1,6 +1,5 @@
 goog.require('ol.Map');
 goog.require('ol.Overlay');
-goog.require('ol.OverlayPositioning');
 goog.require('ol.View2D');
 goog.require('ol.layer.Tile');
 goog.require('ol.layer.Vector');
@@ -62,7 +61,7 @@ var element = document.getElementById('popup');
 
 var popup = new ol.Overlay({
   element: element,
-  positioning: ol.OverlayPositioning.BOTTOM_CENTER,
+  positioning: 'bottom-center',
   stopEvent: false
 });
 map.addOverlay(popup);
diff --git a/examples/overlay.js b/examples/overlay.js
index 41a5d650ce..d6d9d0a3b2 100644
--- a/examples/overlay.js
+++ b/examples/overlay.js
@@ -1,6 +1,5 @@
 goog.require('ol.Map');
 goog.require('ol.Overlay');
-goog.require('ol.OverlayPositioning');
 goog.require('ol.RendererHints');
 goog.require('ol.View2D');
 goog.require('ol.coordinate');
@@ -28,7 +27,7 @@ var pos = ol.proj.transform([16.3725, 48.208889], 'EPSG:4326', 'EPSG:3857');
 // Vienna marker
 var marker = new ol.Overlay({
   position: pos,
-  positioning: ol.OverlayPositioning.CENTER_CENTER,
+  positioning: 'center-center',
   element: document.getElementById('marker'),
   stopEvent: false
 });