diff --git a/src/ol/renderer/layerrenderer.js b/src/ol/renderer/layerrenderer.js
index 86c2fcfbe2..110e294e72 100644
--- a/src/ol/renderer/layerrenderer.js
+++ b/src/ol/renderer/layerrenderer.js
@@ -42,6 +42,13 @@ ol.renderer.Layer = function(mapRenderer, layer) {
 goog.inherits(ol.renderer.Layer, goog.Disposable);
 
 
+/**
+ * @param {ol.Pixel} pixel Pixel.
+ * @param {function(ol.Feature)} callback Feature callback.
+ */
+ol.renderer.Layer.prototype.forEachFeatureAtPixel = goog.nullFunction;
+
+
 /**
  * @protected
  * @return {ol.layer.Layer} Layer.