diff --git a/src/ol/render/canvas/canvasreplay.js b/src/ol/render/canvas/canvasreplay.js
index ed8360f865..e8919964e4 100644
--- a/src/ol/render/canvas/canvasreplay.js
+++ b/src/ol/render/canvas/canvasreplay.js
@@ -122,7 +122,7 @@ ol.render.canvas.Replay.prototype.replay =
     function(context, transform, renderGeometryFunction) {
   /** @type {Array.<number>} */
   var pixelCoordinates;
-  if (ol.vec.Mat4.equal2D(transform, this.renderedTransform_)) {
+  if (ol.vec.Mat4.equals2D(transform, this.renderedTransform_)) {
     pixelCoordinates = this.pixelCoordinates_;
   } else {
     pixelCoordinates = ol.geom.flat.transform2D(
diff --git a/src/ol/vec/mat4.js b/src/ol/vec/mat4.js
index 312dbeb040..cc34b469ac 100644
--- a/src/ol/vec/mat4.js
+++ b/src/ol/vec/mat4.js
@@ -39,7 +39,7 @@ ol.vec.Mat4.makeTransform2D = function(mat, translateX1, translateY1,
  * @param {goog.vec.Mat4.AnyType} mat2 Matrix 2.
  * @return {boolean} Equal 2D.
  */
-ol.vec.Mat4.equal2D = function(mat1, mat2) {
+ol.vec.Mat4.equals2D = function(mat1, mat2) {
   return (
       goog.vec.Mat4.getElement(mat1, 0, 0) ==
       goog.vec.Mat4.getElement(mat2, 0, 0) &&