diff --git a/src/ol/Feature.js b/src/ol/Feature.js
index e3f7416d50..fa0de7875f 100644
--- a/src/ol/Feature.js
+++ b/src/ol/Feature.js
@@ -237,8 +237,7 @@ Feature.prototype.setGeometry = function(geometry) {
  */
 Feature.prototype.setStyle = function(style) {
   this.style_ = style;
-  this.styleFunction_ = !style ?
-    undefined : Feature.createStyleFunction(style);
+  this.styleFunction_ = !style ? undefined : createStyleFunction(style);
   this.changed();
 };
 
@@ -285,7 +284,7 @@ Feature.prototype.setGeometryName = function(name) {
  *     A feature style function, a single style, or an array of styles.
  * @return {ol.StyleFunction} A style function.
  */
-Feature.createStyleFunction = function(obj) {
+export function createStyleFunction(obj) {
   if (typeof obj === 'function') {
     return obj;
   } else {
@@ -304,5 +303,5 @@ Feature.createStyleFunction = function(obj) {
       return styles;
     };
   }
-};
+}
 export default Feature;
diff --git a/test/spec/ol/feature.test.js b/test/spec/ol/feature.test.js
index 0468a64269..3e1980a7f8 100644
--- a/test/spec/ol/feature.test.js
+++ b/test/spec/ol/feature.test.js
@@ -1,4 +1,4 @@
-import Feature from '../../../src/ol/Feature.js';
+import Feature, {createStyleFunction} from '../../../src/ol/Feature.js';
 import Point from '../../../src/ol/geom/Point.js';
 import {isEmpty} from '../../../src/ol/obj.js';
 import Style from '../../../src/ol/style/Style.js';
@@ -441,12 +441,12 @@ describe('ol.Feature.createStyleFunction()', function() {
   const style = new Style();
 
   it('creates a feature style function from a single style', function() {
-    const styleFunction = Feature.createStyleFunction(style);
+    const styleFunction = createStyleFunction(style);
     expect(styleFunction()).to.eql([style]);
   });
 
   it('creates a feature style function from an array of styles', function() {
-    const styleFunction = Feature.createStyleFunction([style]);
+    const styleFunction = createStyleFunction([style]);
     expect(styleFunction()).to.eql([style]);
   });
 
@@ -454,13 +454,13 @@ describe('ol.Feature.createStyleFunction()', function() {
     const original = function(feature, resolution) {
       return [style];
     };
-    const styleFunction = Feature.createStyleFunction(original);
+    const styleFunction = createStyleFunction(original);
     expect(styleFunction).to.be(original);
   });
 
   it('throws on (some) unexpected input', function() {
     expect(function() {
-      Feature.createStyleFunction({bogus: 'input'});
+      createStyleFunction({bogus: 'input'});
     }).to.throwException();
   });