diff --git a/changelog/upgrade-notes.md b/changelog/upgrade-notes.md
index cd017c42a8..a850ab4bdb 100644
--- a/changelog/upgrade-notes.md
+++ b/changelog/upgrade-notes.md
@@ -39,7 +39,8 @@ The map and sources no longer accept a `logo` option.  Instead, if you wish to a
 
 The following methods did get the optional this (i.e. opt_this) arguments removed. Please use closures, the es6 arrow function or the bind method to achieve this effect (Bind is explained here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
 
-* ol.Collection#forEach
+* Collection#forEach
+* geom/LineString#forEachSegment
 
 ### v4.6.0
 
diff --git a/src/ol/geom/LineString.js b/src/ol/geom/LineString.js
index 2cf40505fd..b336a56e9c 100644
--- a/src/ol/geom/LineString.js
+++ b/src/ol/geom/LineString.js
@@ -114,15 +114,13 @@ LineString.prototype.closestPointXY = function(x, y, closestPoint, minSquaredDis
  *
  * @param {function(this: S, ol.Coordinate, ol.Coordinate): T} callback Function
  *     called for each segment.
- * @param {S=} opt_this The object to be used as the value of 'this'
- *     within callback.
  * @return {T|boolean} Value.
  * @template T,S
  * @api
  */
-LineString.prototype.forEachSegment = function(callback, opt_this) {
+LineString.prototype.forEachSegment = function(callback) {
   return _ol_geom_flat_segments_.forEach(this.flatCoordinates, 0,
-      this.flatCoordinates.length, this.stride, callback, opt_this);
+      this.flatCoordinates.length, this.stride, callback);
 };