diff --git a/src/ol/source/cartodb.js b/src/ol/source/cartodb.js
index 21a8d8df02..0dd0f44a1e 100644
--- a/src/ol/source/cartodb.js
+++ b/src/ol/source/cartodb.js
@@ -83,6 +83,7 @@ ol.source.CartoDB.prototype.updateConfig = function(config) {
  * @param {Object} config In the case of anonymous maps, a CartoDB configuration
  *     object.
  * If using named maps, a key-value lookup with the template parameters.
+ * @api
  */
 ol.source.CartoDB.prototype.setConfig = function(config) {
   this.config_ = config || {};