diff --git a/src/ol/source/Cluster.js b/src/ol/source/Cluster.js
index 7b1f8b7e06..f577b63da6 100644
--- a/src/ol/source/Cluster.js
+++ b/src/ol/source/Cluster.js
@@ -16,7 +16,7 @@ import VectorSource from '../source/Vector.js';
  * @typedef {Object} Options
  * @property {ol.AttributionLike} [attributions] Attributions.
  * @property {number} [distance=20] Minimum distance in pixels between clusters.
- * @property {ol.Extent} [extent] Extent.
+ * @property {module:ol/extent~Extent} [extent] Extent.
  * @property {ol.format.Feature} [format] Format.
  * @property {function(module:ol/Feature~Feature):module:ol/geom/Point~Point} [geometryFunction]
  * Function that takes an {@link module:ol/Feature~Feature} as argument and returns an
diff --git a/src/ol/source/ImageCanvas.js b/src/ol/source/ImageCanvas.js
index f85637d894..69392e12f9 100644
--- a/src/ol/source/ImageCanvas.js
+++ b/src/ol/source/ImageCanvas.js
@@ -11,7 +11,7 @@ import ImageSource from '../source/Image.js';
  * @property {ol.AttributionLike} [attributions] Attributions.
  * @property {ol.CanvasFunctionType} [canvasFunction] Canvas function.
  * The function returning the canvas element used by the source
- * as an image. The arguments passed to the function are: `{ol.Extent}` the
+ * as an image. The arguments passed to the function are: `{module:ol/extent~Extent}` the
  * image extent, `{number}` the image resolution, `{number}` the device pixel
  * ratio, `{ol.Size}` the image size, and `{module:ol/proj/Projection~Projection}` the image
  * projection. The canvas returned by this function is cached by the source. If
diff --git a/src/ol/source/ImageStatic.js b/src/ol/source/ImageStatic.js
index 915b18b43c..eeb2ee35d5 100644
--- a/src/ol/source/ImageStatic.js
+++ b/src/ol/source/ImageStatic.js
@@ -18,7 +18,7 @@ import ImageSource, {defaultImageLoadFunction} from '../source/Image.js';
  * you must provide a `crossOrigin` value if you are using the WebGL renderer or if you want to
  * access pixel data with the Canvas renderer.  See
  * {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image} for more detail.
- * @property {ol.Extent} [imageExtent] Extent of the image in map coordinates.
+ * @property {module:ol/extent~Extent} [imageExtent] Extent of the image in map coordinates.
  * This is the [left, bottom, right, top] map coordinates of your image.
  * @property {ol.ImageLoadFunctionType} [imageLoadFunction] Optional function to load an image given a URL.
  * @property {module:ol/proj~ProjectionLike} projection Projection.
diff --git a/src/ol/source/Zoomify.js b/src/ol/source/Zoomify.js
index 581b876d45..51de4f64f3 100644
--- a/src/ol/source/Zoomify.js
+++ b/src/ol/source/Zoomify.js
@@ -103,7 +103,7 @@ CustomTile.prototype.getImage = function() {
  * used instead of defining each one separately in the `urls` option.
  * @property {string} [tierSizeCalculation] Tier size calculation method: `default` or `truncated`.
  * @property {ol.Size} [size] Size of the image.
- * @property {ol.Extent} [extent] Extent for the TileGrid that is created.
+ * @property {module:ol/extent~Extent} [extent] Extent for the TileGrid that is created.
  * Default sets the TileGrid in the
  * fourth quadrant, meaning extent is `[0, -height, width, 0]`. To change the
  * extent to the first quadrant (the default for OpenLayers 2) set the extent