diff --git a/src/ol/tile.js b/src/ol/tile.js
index 4d13e0658b..de2b6ef6cd 100644
--- a/src/ol/tile.js
+++ b/src/ol/tile.js
@@ -56,6 +56,7 @@ ol.Tile.prototype.dispatchChangeEvent = function() {
 
 
 /**
+ * @function
  * @param {Object=} opt_context Object.
  * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.
  */