diff --git a/src/ol/render/irender.js b/src/ol/render/irender.js
index 88eae96ba6..613106b86a 100644
--- a/src/ol/render/irender.js
+++ b/src/ol/render/irender.js
@@ -9,6 +9,14 @@ ol.render.IRender = function() {
 };
 
 
+/**
+ * @param {ol.Feature} feature Feature.
+ * @param {ol.style.Style} style Style.
+ */
+ol.render.IRender.prototype.drawFeature = function(feature, style) {
+};
+
+
 /**
  * @param {ol.geom.Point} pointGeometry Point geometry.
  */