diff --git a/test/spec/ol/control/scaleline.test.js b/test/spec/ol/control/scaleline.test.js
index 805163a09d..52dd208067 100644
--- a/test/spec/ol/control/scaleline.test.js
+++ b/test/spec/ol/control/scaleline.test.js
@@ -286,6 +286,13 @@ describe('ol.control.ScaleLine', function() {
       ctrl.setUnits('imperial');
       expect(ctrl.element_.innerText).to.be('500 ft');
 
+      ctrl.setUnits('nautical');
+      expect(ctrl.element_.innerText).to.be('0.05 nm');
+
+      ctrl.setUnits('imperial');
+      expect(ctrl.element_.innerText).to.be('500 ft');
+
+
       map.setView(new View({
         center: [0, 0],
         zoom: 0,
@@ -306,6 +313,12 @@ describe('ol.control.ScaleLine', function() {
 
       ctrl.setUnits('imperial');
       expect(ctrl.element_.innerText).to.be('5 in');
+
+      ctrl.setUnits('nautical');
+      expect(ctrl.element_.innerText).to.be('0.00005 nm');
+
+      ctrl.setUnits('imperial');
+      expect(ctrl.element_.innerText).to.be('5 in');
     });
 
     it('Metric display works with Geographic (EPSG:4326) projection', function() {