diff --git a/src/ol/format/wktformat.js b/src/ol/format/wktformat.js
index c252bd30cd..edde426c9c 100644
--- a/src/ol/format/wktformat.js
+++ b/src/ol/format/wktformat.js
@@ -18,6 +18,10 @@ goog.require('ol.geom.Polygon');
 
 
 /**
+ * @classdesc
+ * Geometry format for reading and writing data in the `WellKnownText` (WKT)
+ * format.
+ *
  * @constructor
  * @extends {ol.format.TextFeature}
  * @param {olx.format.WKTOptions=} opt_options Options.