diff --git a/test/spec/ol/control/scaleline.test.js b/test/spec/ol/control/scaleline.test.js
index ea3e2f75b3..81cb3495a4 100644
--- a/test/spec/ol/control/scaleline.test.js
+++ b/test/spec/ol/control/scaleline.test.js
@@ -8,6 +8,7 @@ describe('ol.control.ScaleLine', function() {
   let map;
   beforeEach(function() {
     const target = document.createElement('div');
+    target.style.height = '256px';
     document.body.appendChild(target);
     map = new Map({
       target: target