diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index 85a6db7493..9fe757271c 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -139,7 +139,7 @@
 
 /**
  * @typedef {Object} ol.control.AttributionOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS class name. Default is 'ol-attribution'.
  * @property {ol.Map|undefined} map Map.
  * @property {Element|undefined} target Target.
  */
@@ -164,7 +164,7 @@
 
 /**
  * @typedef {Object} ol.control.FullScreenOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS class name. Default is 'ol-full-screen'.
  * @property {boolean|undefined} keys Full keyboard access.
  * @property {ol.Map|undefined} map Map.
  * @property {Element|undefined} target Target.
@@ -172,25 +172,26 @@
 
 /**
  * @typedef {Object} ol.control.LogoOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS class name. Default is 'ol-logo'.
  * @property {ol.Map|undefined} map Map.
  * @property {Element|undefined} target Target.
  */
 
 /**
  * @typedef {Object} ol.control.MousePositionOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS class name. Default is 'ol-mouse-position'.
  * @property {ol.CoordinateFormatType|undefined} coordinateFormat Coordinate
  *     format.
  * @property {ol.Map|undefined} map Map.
  * @property {ol.ProjectionLike} projection Projection.
  * @property {Element|undefined} target Target.
  * @property {string|undefined} undefinedHTML Markup for undefined coordinates.
+ *     Default is '' (empty string).
  */
 
 /**
  * @typedef {Object} ol.control.ScaleLineOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS Class name. Default is 'ol-scale-line'.
  * @property {ol.Map|undefined} map Map.
  * @property {number|undefined} minWidth Minimum width in pixels.
  * @property {Element|undefined} target Target.
@@ -199,15 +200,15 @@
 
 /**
  * @typedef {Object} ol.control.ZoomOptions
- * @property {string|undefined} className Class name.
- * @property {number|undefined} delta Delta.
+ * @property {string|undefined} className CSS class name. Default is 'ol-zoom'.
+ * @property {number|undefined} delta The zoom delta applied on each click.
  * @property {ol.Map|undefined} map Map.
  * @property {Element|undefined} target Target.
  */
 
 /**
  * @typedef {Object} ol.control.ZoomSliderOptions
- * @property {string|undefined} className Class name.
+ * @property {string|undefined} className CSS class name.
  * @property {ol.Map|undefined} map Map.
  * @property {number|undefined} maxResolution Maximum resolution.
  * @property {number|undefined} minResolution Minimum resolution.