diff --git a/src/ol/source/wmtssource.js b/src/ol/source/wmtssource.js
index 8907628e0f..0ee1474166 100644
--- a/src/ol/source/wmtssource.js
+++ b/src/ol/source/wmtssource.js
@@ -240,7 +240,6 @@ ol.source.WMTS.prototype.updateDimensions = function(dimensions) {
  * @param {Object} wmtsCap An object representing the capabilities document.
  * @param {string} layer The layer identifier.
  * @return {olx.source.WMTSOptions} WMTS source options object.
- * @api
  */
 ol.source.WMTS.optionsFromCapabilities = function(wmtsCap, layer) {