diff --git a/externs/olx.js b/externs/olx.js
index b527195d2f..f72424f7aa 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -4404,7 +4404,7 @@ olx.source.ImageMapGuideOptions.prototype.resolutions;
 
 /**
  * Optional function to load an image given a URL.
- * @type {ol.TileLoadFunctionType|undefined}
+ * @type {ol.ImageLoadFunctionType|undefined}
  * @api
  */
 olx.source.ImageMapGuideOptions.prototype.imageLoadFunction;
@@ -5012,7 +5012,7 @@ olx.source.ImageStaticOptions.prototype.imageExtent;
 
 /**
  * Optional function to load an image given a URL.
- * @type {ol.TileLoadFunctionType|undefined}
+ * @type {ol.ImageLoadFunctionType|undefined}
  * @api
  */
 olx.source.ImageStaticOptions.prototype.imageLoadFunction;