diff --git a/src/ol/pluggablemap.js b/src/ol/pluggablemap.js
index 0b667ccb25..c59f5ee821 100644
--- a/src/ol/pluggablemap.js
+++ b/src/ol/pluggablemap.js
@@ -239,7 +239,7 @@ ol.PluggableMap = function(options) {
    * @type {ol.renderer.Map}
    * @private
    */
-  this.renderer_ = optionsInternal.mapRendererPlugin.create(this.viewport_, this);
+  this.renderer_ = optionsInternal.mapRendererPlugin['create'](this.viewport_, this);
 
   /**
    * @type {function(Event)|undefined}
@@ -1418,7 +1418,7 @@ ol.PluggableMap.createOptionsInternal = function(options) {
     var rendererType = rendererTypes[i];
     for (var j = 0, jj = mapRendererPlugins.length; j < jj; ++j) {
       var candidate = mapRendererPlugins[j];
-      if (candidate.handles(rendererType)) {
+      if (candidate['handles'](rendererType)) {
         mapRendererPlugin = candidate;
         break outer;
       }
diff --git a/src/ol/renderer/map.js b/src/ol/renderer/map.js
index 4fa5386c79..732cdba063 100644
--- a/src/ol/renderer/map.js
+++ b/src/ol/renderer/map.js
@@ -212,8 +212,8 @@ ol.renderer.Map.prototype.getLayerRenderer = function(layer) {
     var type = this.getType();
     for (var i = 0, ii = layerRendererPlugins.length; i < ii; ++i) {
       var plugin = layerRendererPlugins[i];
-      if (plugin.handles(type, layer)) {
-        renderer = plugin.create(this, layer);
+      if (plugin['handles'](type, layer)) {
+        renderer = plugin['create'](this, layer);
         break;
       }
     }