diff --git a/src/ol/style/imagestyle.js b/src/ol/style/imagestyle.js
index 3c36309c3a..9a566bcfe4 100644
--- a/src/ol/style/imagestyle.js
+++ b/src/ol/style/imagestyle.js
@@ -88,6 +88,13 @@ ol.style.Image.prototype.dispatchChangeEvent = function() {
 ol.style.Image.prototype.getImage = goog.abstractMethod;
 
 
+/**
+ * @param {number} pixelRatio Pixel ratio.
+ * @return {HTMLCanvasElement|HTMLVideoElement|Image} Image element.
+ */
+ol.style.Image.prototype.getHitDetectionImage = goog.abstractMethod;
+
+
 /**
  * Load not yet loaded URI.
  */