diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index 898a48adb3..59a9c6701b 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -775,6 +775,12 @@
  * @todo stability experimental
  */
 
+/**
+ * @typedef {Object} olx.source.WMSGetFeatureInfoOptions
+ * @property {ol.source.WMSGetFeatureInfoMethod|undefined} method Method.
+ * @property {Object.<string,string>|undefined} params Params.
+ */
+
 /**
  * @typedef {Object} olx.source.WMTSOptions
  * @property {Array.<ol.Attribution>|undefined} attributions Attributions.
diff --git a/src/ol/source/wmssource.js b/src/ol/source/wmssource.js
index 5799ebaf69..5f9f3eae08 100644
--- a/src/ol/source/wmssource.js
+++ b/src/ol/source/wmssource.js
@@ -7,13 +7,6 @@ goog.require('goog.object');
 goog.require('goog.uri.utils');
 
 
-/**
- * @typedef {{method: (ol.source.WMSGetFeatureInfoMethod|undefined),
- *            params: (Object.<string,string>|undefined)}}
- */
-ol.source.WMSGetFeatureInfoOptions;
-
-
 /**
  * Method to use to get WMS feature info.
  * @enum {string}
@@ -74,8 +67,8 @@ ol.source.wms.getUrl =
 /**
  * @param {string} url URL as provided by the url function.
  * @param {ol.Pixel} pixel Pixel.
- * @param {olx.source.WMSGetFeatureInfoOptions} options Options as defined in the
- *     source.
+ * @param {olx.source.WMSGetFeatureInfoOptions} options Options as defined in
+ *     the source.
  * @param {function(string)} success Callback function for successful queries.
  * @param {function()=} opt_error Optional callback function for unsuccessful
  *     queries.