diff --git a/src/ol/control/rotatecontrol.js b/src/ol/control/rotatecontrol.js
index <HASH>..<HASH> 100644
--- a/src/ol/control/rotatecontrol.js
+++ b/src/ol/control/rotatecontrol.js
@@ -148,6 +148,7 @@ ol.control.Rotate.prototype.resetNorth_ = function() {
 
 
 /**
+ * Update the rotate control element.
  * @param {ol.MapEvent} mapEvent Map event.
  * @this {ol.control.Rotate}
  * @api
Add basic docs for rotatecontrol