diff --git a/src/ol/layer/BaseVector.js b/src/ol/layer/BaseVector.js
index 7df1fe9bf3..fd6255f4a9 100644
--- a/src/ol/layer/BaseVector.js
+++ b/src/ol/layer/BaseVector.js
@@ -133,13 +133,6 @@ class BaseVectorLayer extends Layer {
     return this.declutter_;
   }
 
-  /**
-   * @param {boolean} declutter Declutter.
-   */
-  setDeclutter(declutter) {
-    this.declutter_ = declutter;
-  }
-
   /**
    * @return {number|undefined} Render buffer.
    */
diff --git a/test/rendering/ol/layer/vector.test.js b/test/rendering/ol/layer/vector.test.js
index 545d30a9a2..4b38fd8e98 100644
--- a/test/rendering/ol/layer/vector.test.js
+++ b/test/rendering/ol/layer/vector.test.js
@@ -470,6 +470,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters text', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -488,7 +489,6 @@ describe('ol.rendering.layer.Vector', function() {
         text: 'east'
       }));
 
-      layer.setDeclutter(true);
       layer.setStyle(function(feature) {
         return new Style({
           text: new Text({
@@ -510,6 +510,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters text and respects z-index', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -530,7 +531,6 @@ describe('ol.rendering.layer.Vector', function() {
         zIndex: 1
       }));
 
-      layer.setDeclutter(true);
       layer.setStyle(function(feature) {
         return new Style({
           zIndex: feature.get('zIndex'),
@@ -550,6 +550,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters images', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -565,7 +566,6 @@ describe('ol.rendering.layer.Vector', function() {
         geometry: new Point([center[0] + 540, center[1]])
       }));
 
-      layer.setDeclutter(true);
       layer.setStyle(function(feature) {
         return new Style({
           image: new CircleStyle({
@@ -589,6 +589,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters images and respects z-index', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -606,7 +607,6 @@ describe('ol.rendering.layer.Vector', function() {
         zIndex: 1
       }));
 
-      layer.setDeclutter(true);
       layer.setStyle(function(feature) {
         return new Style({
           zIndex: feature.get('zIndex'),
@@ -628,6 +628,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters image & text groups', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -645,7 +646,6 @@ describe('ol.rendering.layer.Vector', function() {
         text: 'east'
       }));
 
-      layer.setDeclutter(true);
       layer.setStyle(function(feature) {
         return new Style({
           image: new CircleStyle({
@@ -672,6 +672,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters text along lines and images', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -704,8 +705,6 @@ describe('ol.rendering.layer.Vector', function() {
       source.addFeature(point);
       source.addFeature(line);
 
-      layer.setDeclutter(true);
-
       map.once('postrender', function() {
         expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-declutter-line.png',
           IMAGE_TOLERANCE, done);
@@ -715,6 +714,7 @@ describe('ol.rendering.layer.Vector', function() {
     it('declutters text along lines and images with z-index', function(done) {
       createMap();
       const layer = new VectorLayer({
+        declutter: true,
         source: source
       });
       map.addLayer(layer);
@@ -749,8 +749,6 @@ describe('ol.rendering.layer.Vector', function() {
       source.addFeature(point);
       source.addFeature(line);
 
-      layer.setDeclutter(true);
-
       map.once('postrender', function() {
         const hitDetected = map.getFeaturesAtPixel([35, 46]);
         expect(hitDetected).to.have.length(1);
diff --git a/test/rendering/ol/layer/vectorimage.test.js b/test/rendering/ol/layer/vectorimage.test.js
index c2b2a0a320..ca4ba48d80 100644
--- a/test/rendering/ol/layer/vectorimage.test.js
+++ b/test/rendering/ol/layer/vectorimage.test.js
@@ -166,6 +166,7 @@ describe('ol.rendering.layer.VectorImage', function() {
   it('declutters text', function(done) {
     createMap();
     const layer = new VectorImageLayer({
+      declutter: true,
       source: source
     });
     map.addLayer(layer);
@@ -184,7 +185,6 @@ describe('ol.rendering.layer.VectorImage', function() {
       text: 'east'
     }));
 
-    layer.setDeclutter(true);
     layer.setStyle(function(feature) {
       return new Style({
         text: new Text({
@@ -206,6 +206,7 @@ describe('ol.rendering.layer.VectorImage', function() {
   it('declutters images', function(done) {
     createMap();
     const layer = new VectorImageLayer({
+      declutter: true,
       source: source
     });
     map.addLayer(layer);
@@ -221,7 +222,6 @@ describe('ol.rendering.layer.VectorImage', function() {
       geometry: new Point([center[0] + 540, center[1]])
     }));
 
-    layer.setDeclutter(true);
     layer.setStyle(function(feature) {
       return new Style({
         image: new CircleStyle({
@@ -245,6 +245,7 @@ describe('ol.rendering.layer.VectorImage', function() {
   it('declutters text along lines and images', function(done) {
     createMap();
     const layer = new VectorImageLayer({
+      declutter: true,
       source: source
     });
     map.addLayer(layer);
@@ -277,8 +278,6 @@ describe('ol.rendering.layer.VectorImage', function() {
     source.addFeature(point);
     source.addFeature(line);
 
-    layer.setDeclutter(true);
-
     map.once('postrender', function() {
       expectResemble(map, 'rendering/ol/layer/expected/vector-canvas-declutter-line.png',
         IMAGE_TOLERANCE, done);