diff --git a/src/ol/style/iconstyle.js b/src/ol/style/iconstyle.js
index 763679da7b..b5693ca254 100644
--- a/src/ol/style/iconstyle.js
+++ b/src/ol/style/iconstyle.js
@@ -232,6 +232,15 @@ ol.style.Icon.prototype.getImage = function(pixelRatio) {
 };
 
 
+/**
+ * Real Image size used.
+ * @return {ol.Size} Size.
+ */
+ol.style.Icon.prototype.getImageSize = function() {
+  return this.iconImage_.getSize();
+};
+
+
 /**
  * @inheritDoc
  */