diff --git a/src/ol/reproj/Image.js b/src/ol/reproj/Image.js
index e0ffc4265c..69f418fd0d 100644
--- a/src/ol/reproj/Image.js
+++ b/src/ol/reproj/Image.js
@@ -9,7 +9,7 @@ import _ol_events_ from '../events.js';
 import EventType from '../events/EventType.js';
 import {getCenter, getIntersection, getHeight, getWidth} from '../extent.js';
 import _ol_reproj_ from '../reproj.js';
-import _ol_reproj_Triangulation_ from '../reproj/Triangulation.js';
+import Triangulation from '../reproj/Triangulation.js';
 
 /**
  * @classdesc
@@ -55,7 +55,7 @@ var ReprojImage = function(sourceProj, targetProj,
    * @private
    * @type {!ol.reproj.Triangulation}
    */
-  this.triangulation_ = new _ol_reproj_Triangulation_(
+  this.triangulation_ = new Triangulation(
       sourceProj, targetProj, limitedTargetExtent, this.maxSourceExtent_,
       sourceResolution * errorThresholdInPixels);
 
diff --git a/src/ol/reproj/Tile.js b/src/ol/reproj/Tile.js
index ef0b9d5beb..7567c0388b 100644
--- a/src/ol/reproj/Tile.js
+++ b/src/ol/reproj/Tile.js
@@ -10,7 +10,7 @@ import EventType from '../events/EventType.js';
 import {getArea, getCenter, getIntersection} from '../extent.js';
 import {clamp} from '../math.js';
 import _ol_reproj_ from '../reproj.js';
-import _ol_reproj_Triangulation_ from '../reproj/Triangulation.js';
+import Triangulation from '../reproj/Triangulation.js';
 
 /**
  * @classdesc
@@ -142,7 +142,7 @@ var ReprojTile = function(sourceProj, sourceTileGrid,
    * @private
    * @type {!ol.reproj.Triangulation}
    */
-  this.triangulation_ = new _ol_reproj_Triangulation_(
+  this.triangulation_ = new Triangulation(
       sourceProj, targetProj, limitedTargetExtent, maxSourceExtent,
       sourceResolution * errorThresholdInPixels);
 
diff --git a/src/ol/reproj/Triangulation.js b/src/ol/reproj/Triangulation.js
index 6d552e9f2a..1635d872e0 100644
--- a/src/ol/reproj/Triangulation.js
+++ b/src/ol/reproj/Triangulation.js
@@ -41,7 +41,7 @@ var MAX_TRIANGLE_WIDTH = 0.25;
  * @param {number} errorThreshold Acceptable error (in source units).
  * @constructor
  */
-var _ol_reproj_Triangulation_ = function(sourceProj, targetProj, targetExtent,
+var Triangulation = function(sourceProj, targetProj, targetExtent,
     maxSourceExtent, errorThreshold) {
 
   /**
@@ -189,7 +189,7 @@ var _ol_reproj_Triangulation_ = function(sourceProj, targetProj, targetExtent,
  * @param {ol.Coordinate} cSrc The source c coordinate.
  * @private
  */
-_ol_reproj_Triangulation_.prototype.addTriangle_ = function(a, b, c,
+Triangulation.prototype.addTriangle_ = function(a, b, c,
     aSrc, bSrc, cSrc) {
   this.triangles_.push({
     source: [aSrc, bSrc, cSrc],
@@ -214,7 +214,7 @@ _ol_reproj_Triangulation_.prototype.addTriangle_ = function(a, b, c,
  * @param {number} maxSubdivision Maximal allowed subdivision of the quad.
  * @private
  */
-_ol_reproj_Triangulation_.prototype.addQuad_ = function(a, b, c, d,
+Triangulation.prototype.addQuad_ = function(a, b, c, d,
     aSrc, bSrc, cSrc, dSrc, maxSubdivision) {
 
   var sourceQuadExtent = boundingExtent([aSrc, bSrc, cSrc, dSrc]);
@@ -326,7 +326,7 @@ _ol_reproj_Triangulation_.prototype.addQuad_ = function(a, b, c, d,
  *
  * @return {ol.Extent} Calculated extent.
  */
-_ol_reproj_Triangulation_.prototype.calculateSourceExtent = function() {
+Triangulation.prototype.calculateSourceExtent = function() {
   var extent = createEmpty();
 
   this.triangles_.forEach(function(triangle, i, arr) {
@@ -343,7 +343,7 @@ _ol_reproj_Triangulation_.prototype.calculateSourceExtent = function() {
 /**
  * @return {Array.<ol.ReprojTriangle>} Array of the calculated triangles.
  */
-_ol_reproj_Triangulation_.prototype.getTriangles = function() {
+Triangulation.prototype.getTriangles = function() {
   return this.triangles_;
 };
-export default _ol_reproj_Triangulation_;
+export default Triangulation;
diff --git a/test/spec/ol/reproj/triangulation.test.js b/test/spec/ol/reproj/triangulation.test.js
index 839b970865..d93524e482 100644
--- a/test/spec/ol/reproj/triangulation.test.js
+++ b/test/spec/ol/reproj/triangulation.test.js
@@ -1,6 +1,6 @@
 import {addCommon, clearAllProjections, get as getProjection} from '../../../../src/ol/proj.js';
 import {register} from '../../../../src/ol/proj/proj4.js';
-import _ol_reproj_Triangulation_ from '../../../../src/ol/reproj/Triangulation.js';
+import Triangulation from '../../../../src/ol/reproj/Triangulation.js';
 
 
 describe('ol.reproj.Triangulation', function() {
@@ -23,7 +23,7 @@ describe('ol.reproj.Triangulation', function() {
   describe('constructor', function() {
     it('is trivial for identity', function() {
       var proj4326 = getProjection('EPSG:4326');
-      var triangulation = new _ol_reproj_Triangulation_(proj4326, proj4326,
+      var triangulation = new Triangulation(proj4326, proj4326,
           [20, 20, 30, 30], [-180, -90, 180, 90], 0);
       expect(triangulation.getTriangles().length).to.be(2);
     });
@@ -31,14 +31,14 @@ describe('ol.reproj.Triangulation', function() {
     it('is empty when outside source extent', function() {
       var proj4326 = getProjection('EPSG:4326');
       var proj27700 = getProjection('EPSG:27700');
-      var triangulation = new _ol_reproj_Triangulation_(proj27700, proj4326,
+      var triangulation = new Triangulation(proj27700, proj4326,
           [0, 0, 10, 10], proj27700.getExtent(), 0);
       expect(triangulation.getTriangles().length).to.be(0);
     });
 
     it('can handle null source extent', function() {
       var proj4326 = getProjection('EPSG:4326');
-      var triangulation = new _ol_reproj_Triangulation_(proj4326, proj4326,
+      var triangulation = new Triangulation(proj4326, proj4326,
           [20, 20, 30, 30], null, 0);
       expect(triangulation.getTriangles().length).to.be(2);
     });