diff --git a/src/ol/interaction/snapinteraction.js b/src/ol/interaction/snapinteraction.js
index 576fcfc5f5..dc93a1b437 100644
--- a/src/ol/interaction/snapinteraction.js
+++ b/src/ol/interaction/snapinteraction.js
@@ -152,6 +152,7 @@ goog.inherits(ol.interaction.Snap, ol.interaction.Pointer);
 
 
 /**
+ * Add a feature to the collection of features that we may snap to.
  * @param {ol.Feature} feature Feature.
  * @param {boolean=} opt_listen Whether to listen to the geometry change or not
  *     Defaults to `true`.
@@ -278,6 +279,7 @@ ol.interaction.Snap.prototype.handleGeometryModify_ = function(feature, evt) {
 
 
 /**
+ * Remove a feature from the collection of features that we may snap to.
  * @param {ol.Feature} feature Feature
  * @param {boolean=} opt_unlisten Whether to unlisten to the geometry change
  *     or not. Defaults to `true`.