diff --git a/test/spec/ol/pointer/mousesource.test.js b/test/spec/ol/pointer/mousesource.test.js
index c4b4a884b1..a575db635f 100644
--- a/test/spec/ol/pointer/mousesource.test.js
+++ b/test/spec/ol/pointer/mousesource.test.js
@@ -20,6 +20,7 @@ describe('ol.pointer.MouseSource', function() {
   });
 
   afterEach(function() {
+    clock.restore();
     handler.dispose();
   });