diff --git a/src/ol/tilerange.js b/src/ol/tilerange.js
index ad788a7736..76d3d7437c 100644
--- a/src/ol/tilerange.js
+++ b/src/ol/tilerange.js
@@ -64,14 +64,6 @@ ol.TileRange.boundingTileRange = function(var_args) {
 };
 
 
-/**
- * @return {ol.TileRange} Clone.
- */
-ol.TileRange.prototype.clone = function() {
-  return new ol.TileRange(this.minX, this.minY, this.maxX, this.maxY);
-};
-
-
 /**
  * @param {ol.TileCoord} tileCoord Tile coordinate.
  * @return {boolean} Contains tile coordinate.
diff --git a/test/spec/ol/source/xyz.test.js b/test/spec/ol/source/xyz.test.js
index 5b143beb0d..f58b399c36 100644
--- a/test/spec/ol/source/xyz.test.js
+++ b/test/spec/ol/source/xyz.test.js
@@ -86,7 +86,9 @@ describe('ol.source.XYZ', function() {
           tileCoord,
           function(z, tileRange) {
             zs.push(z);
-            tileRanges.push(tileRange.clone());
+            tileRanges.push(new ol.TileRange(
+                tileRange.minX, tileRange.minY,
+                tileRange.maxX, tileRange.maxY));
             return false;
           });
 
@@ -129,5 +131,6 @@ describe('ol.source.XYZ', function() {
 
 goog.require('ol.Coordinate');
 goog.require('ol.TileCoord');
+goog.require('ol.TileRange');
 goog.require('ol.tilegrid.XYZ');
 goog.require('ol.source.XYZ');