diff --git a/externs/olx.js b/externs/olx.js
index f63dc86ff3..91049d7314 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -46,61 +46,6 @@ olx.interaction.TranslateOptions.prototype.layers;
 olx.interaction.TranslateOptions.prototype.hitTolerance;
 
 
-/**
- * @typedef {{constrainResolution: (boolean|undefined),
- *     condition: (ol.EventsConditionType|undefined),
- *     duration: (number|undefined),
- *     timeout: (number|undefined),
- *     useAnchor: (boolean|undefined)}}
- */
-olx.interaction.MouseWheelZoomOptions;
-
-
-/**
- * A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean
- * to indicate whether that event should be handled. Default is {@link ol.events.condition.always}.
- * @type {ol.EventsConditionType|undefined}
- * @api
- */
-olx.interaction.MouseWheelZoomOptions.prototype.condition;
-
-
-/**
- * Animation duration in milliseconds. Default is `250`.
- * @type {number|undefined}
- * @api
- */
-olx.interaction.MouseWheelZoomOptions.prototype.duration;
-
-
-/**
- * Mouse wheel timeout duration in milliseconds. Default is `80`.
- * @type {number|undefined}
- * @api
- */
-olx.interaction.MouseWheelZoomOptions.prototype.timeout;
-
-
-/**
- * When using a trackpad or magic mouse, zoom to the closest integer zoom level
- * after the scroll gesture ends.
- * Default is `false`.
- * @type {boolean|undefined}
- * @api
- */
-olx.interaction.MouseWheelZoomOptions.prototype.constrainResolution;
-
-
-/**
- * Enable zooming using the mouse's location as the anchor. Default is `true`.
- * When set to false, zooming in and out will zoom to the center of the screen
- * instead of zooming on the mouse's location.
- * @type {boolean|undefined}
- * @api
- */
-olx.interaction.MouseWheelZoomOptions.prototype.useAnchor;
-
-
 /**
  * @typedef {{threshold: (number|undefined),
  *     duration: (number|undefined)}}
diff --git a/externs/xol.js b/externs/xol.js
index ef9417d8d9..7b38e3eedd 100644
--- a/externs/xol.js
+++ b/externs/xol.js
@@ -14,21 +14,6 @@
  */
 
 
-/**
- * @typedef {Object} interaction_MouseWheelZoomOptions
- * @property {ol.EventsConditionType|undefined} condition A function that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a boolean
- * to indicate whether that event should be handled. Default is {@link ol.events.condition.always}.
- * @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
- * @property {number|undefined} timeout Mouse wheel timeout duration in milliseconds. Default is `80`.
- * @property {boolean|undefined} constrainResolution When using a trackpad or magic mouse, zoom to the closest integer zoom level
- * after the scroll gesture ends.
- * Default is `false`.
- * @property {boolean|undefined} useAnchor Enable zooming using the mouse's location as the anchor. Default is `true`.
- * When set to false, zooming in and out will zoom to the center of the screen
- * instead of zooming on the mouse's location.
- */
-
-
 /**
  * @typedef {Object} interaction_PinchRotateOptions
  * @property {number|undefined} duration The duration of the animation in milliseconds. Default is `250`.
diff --git a/src/ol/interaction/MouseWheelZoom.js b/src/ol/interaction/MouseWheelZoom.js
index cc8949cbe9..28d49211e0 100644
--- a/src/ol/interaction/MouseWheelZoom.js
+++ b/src/ol/interaction/MouseWheelZoom.js
@@ -27,13 +27,30 @@ export const Mode = {
 };
 
 
+/**
+ * @typedef {Object} Options
+ * @property {module:ol/events/condition~Condition} [condition] A function that
+ * takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
+ * boolean to indicate whether that event should be handled. Default is
+ * {@link module:ol/events/condition~always}.
+ * @property {number} [duration=250] Animation duration in milliseconds.
+ * @property {number} [timeout=80] Mouse wheel timeout duration in milliseconds.
+ * @property {boolean} [constrainResolution=false] When using a trackpad or
+ * magic mouse, zoom to the closest integer zoom level after the scroll gesture
+ * ends.
+ * @property {boolean} [useAnchor=true] Enable zooming using the mouse's
+ * location as the anchor. When set to `false`, zooming in and out will zoom to
+ * the center of the screen instead of zooming on the mouse's location.
+ */
+
+
 /**
  * @classdesc
  * Allows the user to zoom the map by scrolling the mouse wheel.
  *
  * @constructor
- * @extends {ol.interaction.Interaction}
- * @param {olx.interaction.MouseWheelZoomOptions=} opt_options Options.
+ * @extends {module:ol/interaction/Interaction~Interaction}
+ * @param {module:olx/interaction/MouseWheelZoom~Options=} opt_options Options.
  * @api
  */
 const MouseWheelZoom = function(opt_options) {
@@ -100,7 +117,7 @@ const MouseWheelZoom = function(opt_options) {
 
   /**
    * @private
-   * @type {ol.interaction.Mode|undefined}
+   * @type {module:ol/interaction/MouseWheelZoom~Mode|undefined}
    */
   this.mode_ = undefined;
 
@@ -140,7 +157,7 @@ inherits(MouseWheelZoom, Interaction);
  * mousewheel-event) and eventually zooms the map.
  * @param {module:ol/MapBrowserEvent~MapBrowserEvent} mapBrowserEvent Map browser event.
  * @return {boolean} Allow event propagation.
- * @this {ol.interaction.MouseWheelZoom}
+ * @this {module:ol/interaction/MouseWheelZoom~MouseWheelZoom}
  */
 function handleEvent(mapBrowserEvent) {
   if (!this.condition_(mapBrowserEvent)) {
@@ -271,7 +288,7 @@ MouseWheelZoom.prototype.decrementInteractingHint_ = function() {
 
 /**
  * @private
- * @param {ol.PluggableMap} map Map.
+ * @param {module:ol/PluggableMap~PluggableMap} map Map.
  */
 MouseWheelZoom.prototype.handleWheelZoom_ = function(map) {
   const view = map.getView();